feat(admin): manage server updates and local configuration

Clean release notes in Android and desktop update dialogs. Persist downloaded audio and offline playback events per server and user; add desktop update checks, checksum verification and installer launch.

.gitignore

@@ -20,6 +20,8 @@ __pycache__/
 .ruff_cache/
 
 # env / secrets
+deploy/config.local
+deploy/.management.lock
 .env
 *.pem
 *.keystore

AGENTS.md

@@ -5,6 +5,6 @@
 - Контракт HTTP — `api/openapi.yaml`. Читай нужную операцию и связанные схемы. Generated-код (`**/gen/**`, `**/generated/**`) и lock-файлы исследуй точечно; не редактируй вручную.
 - После изменения OpenAPI: `pnpm --filter @pipu/api-client generate`, затем из `services/api`: `go generate ./...`. Проверяй и коммить результат генерации.
 - Новые правила размещай у владельца сценария, IO — в адаптере. Сохраняй явные границы транзакций и платформенные особенности. Узкий интерфейс вводи для конкретного потребителя.
-- Промежуточно запускай проверки затронутой области; перед сдачей — необходимые связанные проверки. Команды запускаются из корня, если не сказано иначе.
-- Общие проверки: `pnpm typecheck`, `pnpm test`, `pnpm i18n:check`, `pnpm test:scripts`. Go: из `services/api` — `go vet ./...`, `go test ./...`. Python: из `services/recommender` — `uv run ruff check .`, `uv run mypy pipu_rec`, `uv run pytest`.
+- Локально достаточно запускать проверки затронутой области и непосредственно связанных сценариев. Полный набор тестов и проверок повторно выполняется в CI/CD; не запускай все проверки проекта перед каждой сдачей без необходимости. Расширяй локальную проверку при изменении общих контрактов, межмодульных зависимостей или при обнаружении ошибок. Команды запускаются из корня, если не сказано иначе.
+- Справочник полных проверок (выбирай локально только относящиеся к изменению): `pnpm typecheck`, `pnpm test`, `pnpm i18n:check`, `pnpm test:scripts`. Go: из `services/api` — `go vet ./...`, `go test ./...`. Python: из `services/recommender` — `uv run ruff check .`, `uv run mypy pipu_rec`, `uv run pytest`.
 - Не меняй пользовательские артефакты, локальные бинарники и посторонние незакоммиченные файлы.

api/openapi.yaml

@@ -22,6 +22,104 @@ tags:
 security:
   - bearerAuth: []
 paths:
+  /api/v1/admin/server/updates:
+    get:
+      operationId: getServerUpdates
+      tags: [admin]
+      parameters:
+        - in: query
+          name: source_id
+          schema: {type: string}
+      responses:
+        "200":
+          description: Server management result
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ServerUpdates"
+        default:
+          $ref: "#/components/responses/Problem"
+    post:
+      operationId: startServerUpdate
+      tags: [admin]
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/ServerUpdateRequest"
+      responses:
+        "202":
+          description: Server management result
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ServerJob"
+        default:
+          $ref: "#/components/responses/Problem"
+  /api/v1/admin/server/update-sources:
+    put:
+      operationId: saveServerUpdateSources
+      tags: [admin]
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/ServerSources"
+      responses:
+        "200":
+          description: Server management result
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ServerSources"
+        default:
+          $ref: "#/components/responses/Problem"
+  /api/v1/admin/server/config:
+    get:
+      operationId: getServerConfig
+      tags: [admin]
+      responses:
+        "200":
+          description: Server management result
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ServerConfig"
+        default:
+          $ref: "#/components/responses/Problem"
+    patch:
+      operationId: saveServerConfig
+      tags: [admin]
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/ServerConfigPatch"
+      responses:
+        "200":
+          description: Server management result
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ServerConfig"
+        default:
+          $ref: "#/components/responses/Problem"
+  /api/v1/admin/server/config/apply:
+    post:
+      operationId: applyServerConfig
+      tags: [admin]
+      responses:
+        "202":
+          description: Server management result
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ServerJob"
+        default:
+          $ref: "#/components/responses/Problem"
   /api/v1/admin/genius:
     get:
       operationId: getGeniusStats
@@ -991,6 +1089,23 @@ paths:
                 $ref: "#/components/schemas/LibraryErrorPage"
         default:
           $ref: "#/components/responses/Problem"
+  /api/v1/admin/library/analysis/errors:
+    get:
+      operationId: listAnalysisErrors
+      tags: [library]
+      summary: Неудавшиеся задачи аудиоанализа с путями файлов (admin)
+      parameters:
+        - $ref: "#/components/parameters/Limit"
+        - $ref: "#/components/parameters/Cursor"
+      responses:
+        "200":
+          description: Страница ошибок аудиоанализа, упорядоченная по ID трека
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/AnalysisErrorPage"
+        default:
+          $ref: "#/components/responses/Problem"
   /api/v1/admin/library/host-dirs:
     get:
       operationId: listHostDirs
@@ -1815,6 +1930,85 @@ components:
           schema:
             $ref: "#/components/schemas/Problem"
   schemas:
+    ServerSource:
+      type: object
+      required: [id, name, url]
+      properties:
+        id: {type: string, maxLength: 64}
+        name: {type: string, maxLength: 100}
+        url: {type: string, maxLength: 2048}
+    ServerSources:
+      type: object
+      required: [sources]
+      properties:
+        sources:
+          type: array
+          maxItems: 20
+          items: {$ref: "#/components/schemas/ServerSource"}
+    ServerJob:
+      type: object
+      required: [id, kind, state, started_at, finished_at, target, log]
+      properties:
+        id: {type: string}
+        kind: {type: string, enum: [update, config]}
+        state: {type: string, enum: [running, succeeded, failed]}
+        started_at: {type: string}
+        finished_at: {type: string}
+        target: {type: string}
+        log: {type: string}
+    ServerUpdates:
+      type: object
+      required: [sources, versions, current_version, job, source_error]
+      properties:
+        sources:
+          type: array
+          items: {$ref: "#/components/schemas/ServerSource"}
+        versions:
+          type: array
+          items: {type: string}
+        current_version: {type: string}
+        source_error: {type: string}
+        job:
+          allOf: [{$ref: "#/components/schemas/ServerJob"}]
+          nullable: true
+    ServerUpdateRequest:
+      type: object
+      required: [source_id, channel]
+      properties:
+        source_id: {type: string}
+        channel: {type: string, enum: [latest, version, main]}
+        version: {type: string}
+    ServerConfigEntry:
+      type: object
+      required: [key, group, type, secret, readonly, effective, env, local, default_value, source]
+      properties:
+        key: {type: string}
+        group: {type: string}
+        type: {type: string}
+        secret: {type: boolean}
+        readonly: {type: boolean}
+        effective: {type: string}
+        env: {type: string, nullable: true}
+        local: {type: string, nullable: true}
+        default_value: {type: string}
+        source: {type: string, enum: [env, local, default]}
+    ServerConfig:
+      type: object
+      required: [entries, revision, restart_required]
+      properties:
+        revision: {type: string}
+        restart_required: {type: boolean}
+        entries:
+          type: array
+          items: {$ref: "#/components/schemas/ServerConfigEntry"}
+    ServerConfigPatch:
+      type: object
+      required: [revision, values]
+      properties:
+        revision: {type: string}
+        values:
+          type: object
+          additionalProperties: {type: string, nullable: true}
     PlaylistShare:
       type: object
       required: [share_id]
@@ -2478,6 +2672,9 @@ components:
           nullable: true
         role:
           $ref: "#/components/schemas/Role"
+        manages_updates:
+          type: boolean
+          description: Управление обновлениями сервера. У admin всегда; другим выдаёт только admin
         reviews_uploads:
           type: boolean
           description: Может рассматривать очередь на добавление. Не следует из роли и может быть у нескольких людей сразу
@@ -2533,6 +2730,9 @@ components:
           nullable: true
         role:
           $ref: "#/components/schemas/Role"
+        manages_updates:
+          type: boolean
+          description: Управление обновлениями сервера. У admin всегда; другим выдаёт только admin
         reviews_uploads:
           type: boolean
           description: Может рассматривать очередь на добавление. Не следует из роли и может быть у нескольких людей сразу
@@ -2573,6 +2773,9 @@ components:
           maxLength: 64
         role:
           $ref: "#/components/schemas/Role"
+        manages_updates:
+          type: boolean
+          description: Управление обновлениями сервера. У admin всегда; другим выдаёт только admin
         reviews_uploads:
           type: boolean
           description: Сразу выдать аудит загрузок. Может задать только админ
@@ -2599,6 +2802,9 @@ components:
           $ref: "#/components/schemas/Role"
         is_blocked:
           type: boolean
+        manages_updates:
+          type: boolean
+          description: Управление обновлениями сервера. У admin всегда; другим выдаёт только admin
         reviews_uploads:
           type: boolean
           description: Выдать или забрать аудит загрузок. Может менять только админ, в том числе у себя
@@ -2670,6 +2876,8 @@ components:
       type: object
       required: [id, name, type, nfs_server, nfs_export, nfs_options, local_path, tag_priority, scan_interval_minutes, accepts_uploads, write_template, status, status_message, last_scan_at, created_at, scan]
       properties:
+        excluded_dirs:
+          $ref: "#/components/schemas/ExcludedDirs"
         id:
           type: string
           format: uuid
@@ -2730,6 +2938,8 @@ components:
       type: object
       required: [name, type]
       properties:
+        excluded_dirs:
+          $ref: "#/components/schemas/ExcludedDirs"
         name:
           type: string
           maxLength: 100
@@ -2757,6 +2967,8 @@ components:
     SourcePatch:
       type: object
       properties:
+        excluded_dirs:
+          $ref: "#/components/schemas/ExcludedDirs"
         name:
           type: string
           maxLength: 100
@@ -2785,6 +2997,14 @@ components:
           description: |
             Шаблон пути новых файлов; пусто — убрать. Неверный синтаксис — `422 validation.template_invalid`
             с `params.reason`. Проверка обратимости не обязательна для сохранения — её показывает `write-template/check`.
+    ExcludedDirs:
+      type: array
+      maxItems: 100
+      description: Literal folder paths relative to the storage root, including all descendants. Case sensitive; no glob matching. Empty list clears exclusions. Existing library records are retained, but their scan and analysis are skipped. Changes require no running scan.
+      items:
+        type: string
+        minLength: 1
+        maxLength: 1000
     SourceTestResult:
       type: object
       required: [ok, message, audio_files]
@@ -2955,6 +3175,16 @@ components:
       type: object
       required: [running, full, started_at, finished_at, found, to_process, processed, added, updated, moved, missing, errors, error]
       properties:
+        phase:
+          type: string
+          enum: [walking, preparing, processing, finalizing]
+          description: Current scan stage; progress percentage is available only during processing.
+        walked_dirs:
+          type: integer
+          description: Directories visited so far, including the source root.
+        current_dir:
+          type: string
+          description: Current directory relative to the source root, using forward slashes.
         running:
           type: boolean
         full:
@@ -3056,6 +3286,39 @@ components:
         next_cursor:
           type: string
           nullable: true
+    AnalysisError:
+      type: object
+      required: [track_id, title, source_id, source_name, rel_path, error]
+      properties:
+        track_id:
+          type: string
+          format: uuid
+        title:
+          type: string
+        source_id:
+          type: string
+          format: uuid
+          nullable: true
+        source_name:
+          type: string
+          nullable: true
+        rel_path:
+          type: string
+          nullable: true
+          description: Path relative to the source root; primary file if available, otherwise a known file of this track.
+        error:
+          type: string
+    AnalysisErrorPage:
+      type: object
+      required: [items, next_cursor]
+      properties:
+        items:
+          type: array
+          items:
+            $ref: "#/components/schemas/AnalysisError"
+        next_cursor:
+          type: string
+          nullable: true
     HostDirList:
       type: object
       required: [path, dirs]

apps/desktop/src-tauri/Cargo.toml

@@ -20,6 +20,7 @@ tauri-plugin-window-state = "2"
 tauri-plugin-single-instance = "2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
+sha2 = "0.10"
 tokio = { version = "1", features = ["net", "sync", "time"] }
 axum = "0.8"
 reqwest = { version = "0.12", default-features = false, features = ["rustls-tls", "stream", "json"] }

apps/desktop/src-tauri/src/lib.rs

@@ -1,6 +1,7 @@
 mod media;
 mod proxy;
 mod store;
+mod update;
 
 use media::Media;
 use proxy::Proxy;
@@ -110,6 +111,7 @@ pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_single_instance::init(|app, _, _| show_main(app)))
         .plugin(tauri_plugin_window_state::Builder::default().build())
+        .manage(update::Updater::default())
         .setup(|app| {
             let saved = store::load_server(app.handle())?;
             let proxy = tauri::async_runtime::block_on(Proxy::start(saved.clone())).map_err(|e| e.to_string())?;
@@ -150,7 +152,8 @@ pub fn run() {
             Ok(())
         })
         .invoke_handler(tauri::generate_handler![
-            bootstrap, set_server, clear_server, token_get, token_set, token_clear, user_get, user_set, user_clear, media_set
+            bootstrap, set_server, clear_server, token_get, token_set, token_clear, user_get, user_set, user_clear, media_set,
+            update::update_check, update::update_install
         ])
         .run(tauri::generate_context!())
         .expect("desktop app failed to start");

apps/desktop/src-tauri/src/proxy.rs

@@ -86,7 +86,7 @@ fn cors(headers: &mut HeaderMap, origin: Option<&str>) {
     }
     headers.insert("access-control-allow-methods", HeaderValue::from_static("GET, HEAD, POST, PUT, PATCH, DELETE, OPTIONS"));
     headers.insert("access-control-allow-headers", HeaderValue::from_static("authorization, content-type, range, tus-resumable, upload-length, upload-offset, upload-metadata, upload-defer-length, x-requested-with"));
-    headers.insert("access-control-expose-headers", HeaderValue::from_static("content-range, accept-ranges, location, upload-offset, upload-length, tus-resumable, retry-after"));
+    headers.insert("access-control-expose-headers", HeaderValue::from_static("content-range, accept-ranges, location, upload-offset, upload-length, tus-resumable, retry-after, x-pipu-transport-error"));
 }
 
 async fn forward(State(proxy): State<Proxy>, request: Request) -> Response {
@@ -110,7 +110,11 @@ async fn forward(State(proxy): State<Proxy>, request: Request) -> Response {
     } else {
         match transfer(&proxy, request, tail).await {
             Ok(response) => response,
-            Err(_) => (StatusCode::BAD_GATEWAY, "Server unavailable").into_response(),
+            Err(_) => {
+                let mut response = (StatusCode::BAD_GATEWAY, "Server unavailable").into_response();
+                response.headers_mut().insert("x-pipu-transport-error", HeaderValue::from_static("1"));
+                response
+            },
         }
     };
     cors(response.headers_mut(), origin.as_deref());

apps/desktop/src-tauri/src/update.rs

@@ -0,0 +1,152 @@
+//! Server-proxied releases: never accept installer paths or commands from the UI.
+use serde::{Deserialize, Serialize};
+use sha2::{Digest, Sha256};
+use std::{io::Write, path::Path, time::Duration};
+use tauri::{AppHandle, Emitter, Manager, State};
+use tokio::sync::Mutex;
+
+#[derive(Clone, Deserialize, Serialize)]
+pub struct Build {
+    client: String,
+    version: String,
+    filename: String,
+    size: u64,
+    sha256: Option<String>,
+    download_url: String,
+}
+#[derive(Deserialize)]
+struct Catalog { version: String, notes_md: String, clients: Vec<Build> }
+#[derive(Clone, Serialize)]
+pub struct Release { build: Build, notes: String }
+#[derive(Default)]
+pub struct Updater { release: Mutex<Option<(String, Release)>> }
+
+fn client() -> &'static str {
+    if cfg!(target_os = "windows") { "windows" }
+    else if cfg!(target_os = "macos") { "macos" } else { "linux" }
+}
+
+fn version_code(raw: &str) -> Option<u64> {
+    let (base, rc) = raw.trim_start_matches('v').split_once("-rc.").map_or((raw.trim_start_matches('v'), "99"), |v| v);
+    let parts: Vec<u64> = base.split('.').map(str::parse).collect::<Result<_, _>>().ok()?;
+    let rc: u64 = rc.parse().ok()?;
+    if parts.len() != 3 || parts[0] > 1_000_000 || parts[1] > 99 || parts[2] > 99 || rc > 99 { return None; }
+    Some(parts[0] * 1_000_000 + parts[1] * 10_000 + parts[2] * 100 + rc)
+}
+
+fn http() -> Result<reqwest::Client, String> {
+    reqwest::Client::builder().redirect(reqwest::redirect::Policy::none())
+        .connect_timeout(Duration::from_secs(10)).read_timeout(Duration::from_secs(60))
+        .build().map_err(|e| e.to_string())
+}
+
+#[tauri::command]
+pub async fn update_check(app: AppHandle, updater: State<'_, Updater>) -> Result<Option<Release>, String> {
+    let mut saved = updater.release.lock().await;
+    *saved = None;
+    let server = crate::store::load_server(&app)?.ok_or("No server selected")?;
+    let catalog: Catalog = http()?.get(format!("{server}/api/v1/app/clients")).send().await
+        .map_err(|e| e.to_string())?.error_for_status().map_err(|e| e.to_string())?
+        .json().await.map_err(|e| e.to_string())?;
+    let Some(build) = catalog.clients.into_iter().find(|b| b.client == client()) else { return Ok(None); };
+    let current = version_code(&app.package_info().version.to_string()).ok_or("Invalid installed version")?;
+    if version_code(&build.version).ok_or("Invalid release version")? <= current { return Ok(None); }
+    let notes = if build.version == catalog.version { catalog.notes_md } else { String::new() };
+    let release = Release { build, notes };
+    validate_build(&release.build)?;
+    *saved = Some((server, release.clone()));
+    Ok(Some(release))
+}
+
+fn validate_build(build: &Build) -> Result<(), String> {
+    let safe_name = !build.filename.is_empty() && build.filename.bytes().all(|b| b.is_ascii_alphanumeric() || b"._-".contains(&b));
+    let extension = Path::new(&build.filename).extension().and_then(|s| s.to_str()).unwrap_or("");
+    let supported = match client() { "windows" => extension == "exe" || extension == "msi", "linux" => extension == "deb" || extension == "rpm", _ => extension == "dmg" };
+    let checksum = build.sha256.as_deref().is_some_and(|s| s.len() == 64 && s.bytes().all(|c| c.is_ascii_hexdigit()));
+    if !safe_name || !supported || !checksum || build.size == 0 || build.size > 1024 * 1024 * 1024 { return Err("Unsupported installer or missing checksum".into()); }
+    // Restrict to the existing, public Pipu client-file route; no arbitrary URL from a release.
+    if build.download_url != format!("/api/v1/app/download/{}/{}", client(), build.version) {
+        return Err("Invalid installer URL".into());
+    }
+    Ok(())
+}
+
+#[tauri::command]
+pub async fn update_install(app: AppHandle, updater: State<'_, Updater>) -> Result<(), String> {
+    let saved = updater.release.lock().await;
+    let (server, release) = saved.as_ref().ok_or("Check for an update first")?;
+    if crate::store::load_server(&app)?.as_ref() != Some(server) { return Err("Server changed".into()); }
+    let build = &release.build;
+    validate_build(build)?;
+    let dir = app.path().app_cache_dir().map_err(|e| e.to_string())?.join("updates");
+    std::fs::create_dir_all(&dir).map_err(|e| e.to_string())?;
+    let path = dir.join(&build.filename);
+    let part = dir.join(format!("{}.part", uuid::Uuid::new_v4()));
+    let result = async {
+        let mut response = http()?.get(format!("{server}{}", build.download_url)).send().await
+            .map_err(|e| e.to_string())?.error_for_status().map_err(|e| e.to_string())?;
+        let mut file = std::fs::File::create(&part).map_err(|e| e.to_string())?;
+        let mut hash = Sha256::new();
+        let mut bytes = 0u64;
+        while let Some(chunk) = response.chunk().await.map_err(|e| e.to_string())? {
+            bytes += chunk.len() as u64;
+            if bytes > build.size { return Err("Installer exceeds expected size".to_string()); }
+            hash.update(&chunk);
+            file.write_all(&chunk).map_err(|e| e.to_string())?;
+            let _ = app.emit("update-progress", (bytes as f64 / build.size as f64).to_string());
+        }
+        if bytes != build.size || format!("{:x}", hash.finalize()) != build.sha256.as_ref().unwrap().to_lowercase() { return Err("Installer checksum mismatch".into()); }
+        file.sync_all().map_err(|e| e.to_string())?;
+        drop(file);
+        if path.exists() { std::fs::remove_file(&path).map_err(|e| e.to_string())?; }
+        std::fs::rename(&part, &path).map_err(|e| e.to_string())?;
+        launch(&path)?;
+        Ok(())
+    }.await;
+    let _ = std::fs::remove_file(&part);
+    result
+}
+
+fn launch(path: &Path) -> Result<(), String> {
+    #[cfg(target_os = "windows")]
+    {
+        use std::os::windows::process::CommandExt;
+        let mut command = if path.extension().and_then(|s| s.to_str()) == Some("msi") {
+            let mut cmd = std::process::Command::new("msiexec.exe"); cmd.arg("/i").arg(path); cmd
+        } else { std::process::Command::new(path) };
+        command.creation_flags(0x08000000).spawn().map_err(|e| e.to_string())?;
+    }
+    #[cfg(target_os = "linux")]
+    { std::process::Command::new("xdg-open").arg(path).spawn().map_err(|e| e.to_string())?; }
+    #[cfg(target_os = "macos")]
+    { std::process::Command::new("open").arg(path).spawn().map_err(|e| e.to_string())?; }
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn release_order() {
+        assert!(version_code("1.7.2") > version_code("1.7.2-rc.3"));
+        assert!(version_code("1.8.0-rc.1") > version_code("1.7.99"));
+        assert_eq!(version_code("1.7.1"), Some(1070199));
+        assert_eq!(version_code("1.7.100"), None);
+        assert_eq!(version_code("1.7.1;cmd"), None);
+    }
+    #[test]
+    fn installer_is_restricted_to_verified_server_asset() {
+        let extension = match client() { "windows" => "exe", "linux" => "deb", _ => "dmg" };
+        let mut build = Build { client: client().into(), version: "1.8.0".into(), filename: format!("pipu-1.8.0.{extension}"), size: 42,
+            sha256: Some("a".repeat(64)), download_url: format!("/api/v1/app/download/{}/1.8.0", client()) };
+        assert!(validate_build(&build).is_ok());
+        build.download_url = "https://other.example/installer.exe".into();
+        assert!(validate_build(&build).is_err());
+        build.download_url = format!("/api/v1/app/download/{}/1.8.0", client());
+        build.filename = "../installer.exe".into();
+        assert!(validate_build(&build).is_err());
+        build.filename = format!("pipu.{extension}");
+        build.sha256 = None;
+        assert!(validate_build(&build).is_err());
+    }
+}

apps/mobile/src/ui/UpdateDialog.tsx

@@ -1,4 +1,5 @@
 import { useEffect, useSyncExternalStore } from 'react';
+import { releaseNotesText } from '@pipu/core';
 import { useTranslation } from 'react-i18next';
 import { AppState, Modal, Pressable, ScrollView, Text, View } from 'react-native';
 
@@ -10,7 +11,6 @@ import { Button } from './kit';
 export function useUpdateState() {
   return useSyncExternalStore(updater.subscribe, () => updater.state);
 }
-
 /** Проверяет обновления при запуске и возврате в приложение; показывает диалог с «Что нового». */
 export function UpdateDialog() {
   const colors = useColors();
@@ -32,6 +32,7 @@ export function UpdateDialog() {
 
   const { release, required } = st;
   const busy = st.status === 'downloading' || st.status === 'verifying';
+  const notes = releaseNotesText(release.notes_md);
   const action = () => void updater.downloadAndInstall(session, server ?? '');
 
   return (
@@ -57,9 +58,9 @@ export function UpdateDialog() {
             {t('mobile.update_title', { version: release.version })}
           </Text>
           {required && <Text style={{ color: colors.danger }}>{t('mobile.update_required')}</Text>}
-          {release.notes_md.trim() !== '' && (
-            <ScrollView style={{ maxHeight: 240 }}>
-              <Text style={{ color: colors.text2, lineHeight: 20 }}>{plainNotes(release.notes_md)}</Text>
+          {notes !== '' && (
+            <ScrollView style={{ maxHeight: 240, flexShrink: 1 }}>
+              <Text style={{ color: colors.text2, lineHeight: 20 }}>{notes}</Text>
             </ScrollView>
           )}
           <Text style={{ color: colors.text3, fontSize: 12 }}>
@@ -115,13 +116,3 @@ export function UpdateDialog() {
     </Modal>
   );
 }
-
-/** Заметки релиза — Markdown; в диалоге показываем текстом без разметки заголовков и выделения. */
-function plainNotes(md: string): string {
-  return md
-    .replace(/^#{1,6}\s*/gm, '')
-    .replace(/\*\*(.+?)\*\*/g, '$1')
-    .replace(/^\s*[-*]\s+/gm, '• ')
-    .replace(/\[(.+?)\]\(.+?\)/g, '$1')
-    .trim();
-}

apps/web/e2e/desktop.spec.ts

@@ -0,0 +1,63 @@
+import { expect, test } from '@playwright/test';
+
+test('desktop files survive restart, isolate owners and clear only recent cache', async ({ page }) => {
+  await page.goto('/login');
+  const saved = await page.evaluate(async () => {
+    const source = '/src/features/desktop/offline.ts';
+    const { DesktopOffline } = await import(source);
+    const track = { id: 'cached-track', title: 'Offline song', available: true, stream_url: 'data:audio/wav;base64,UklGRg==', duration_ms: 1000, artists: [], album: { id: 'album', title: 'Album', cover_url: null }, genres: [], reaction: null };
+    const session = { client: { POST: async () => ({ data: { items: [track] }, response: new Response('{}') }) } };
+    const offline = new DesktopOffline('test-server/alice', session);
+    await offline.ready;
+    await offline.save(track, true);
+    await offline.save({ ...track, id: 'recent-track' });
+    const tracks = offline.tracks();
+    const result = { count: tracks.length, blob: tracks[0].stream_url.startsWith('blob:'), pinned: offline.pinned(track.id) };
+    offline.dispose();
+    return result;
+  });
+  expect(saved).toEqual({ count: 2, blob: true, pinned: true });
+  await page.reload();
+  const restored = await page.evaluate(async () => {
+    const source = '/src/features/desktop/offline.ts';
+    const { DesktopOffline } = await import(source);
+    const session = { client: { POST: async () => { throw new TypeError('offline'); } } };
+    const alice = new DesktopOffline('test-server/alice', session);
+    const bob = new DesktopOffline('test-server/bob', session);
+    await Promise.all([alice.ready, bob.ready]);
+    const before = alice.tracks().length;
+    const body = await (await fetch(alice.tracks()[0].stream_url)).blob();
+    await alice.clearRecent();
+    const result = { before, bytes: body.size, after: alice.tracks().map((t: { id: string }) => t.id), other: bob.tracks().length };
+    alice.dispose(); bob.dispose();
+    return result;
+  });
+  expect(restored).toEqual({ before: 2, bytes: 4, after: ['cached-track'], other: 0 });
+});
+
+test('desktop update dialog hides build reports and launches installer', async ({ page }) => {
+  await page.addInitScript(() => {
+    localStorage.setItem('pipu.locale', 'ru');
+    (window as Window & { __TAURI__?: unknown }).__TAURI__ = {
+      core: { invoke: async (command: string) => {
+        if (command === 'bootstrap') return { proxyBase: location.origin, server: 'https://music.example' };
+        if (command === 'update_check') return { build: { version: '1.8.0', size: 1048576 }, notes: '<!-- android-status -->\n> APK SHA-256 abc\n<!-- /android-status -->\n## Изменения\n- **Офлайн-музыка**' };
+        if (command === 'update_install') document.documentElement.dataset.installer = 'opened';
+        return null;
+      } },
+      event: { listen: async () => () => undefined },
+    };
+  });
+  await page.goto('/login');
+  await page.getByLabel('Логин').fill('alice');
+  await page.getByRole('textbox', { name: 'Пароль' }).fill('alice-password');
+  await page.getByRole('button', { name: 'Войти' }).click();
+  const dialog = page.getByRole('dialog');
+  await expect(dialog).toContainText('Доступна версия 1.8.0');
+  await expect(dialog).toContainText('• Офлайн-музыка');
+  await expect(dialog).not.toContainText('android-status');
+  await expect(dialog).not.toContainText('SHA-256');
+  await dialog.getByRole('button', { name: 'Скачать и установить' }).click();
+  await expect(dialog).toContainText('Установщик открыт');
+  await expect(page.locator('html')).toHaveAttribute('data-installer', 'opened');
+});

apps/web/e2e/server-management.spec.ts

@@ -0,0 +1,66 @@
+import { expect, test, type Page } from '@playwright/test';
+
+async function login(page: Page, username = 'mobile-admin', target = '/') {
+  await page.addInitScript(() => localStorage.setItem('pipu.locale', 'ru'));
+  await page.goto(`/login?redirect=${encodeURIComponent(target)}`);
+  await page.getByLabel('Логин').fill(username);
+  await page.getByRole('textbox', { name: 'Пароль' }).fill(`${username}-password`);
+  await page.getByRole('button', { name: 'Войти' }).click();
+  await expect(page.getByRole('button', { name: 'Меню профиля' })).toBeVisible();
+}
+
+test('admin selects repository and version, confirms and sees persistent job log', async ({ page }) => {
+  await login(page, 'mobile-admin', '/admin/updates');
+  await expect(page.getByRole('heading', { name: 'Обновления', exact: true })).toBeVisible();
+  await expect(page.getByRole('button', { name: 'Последний релиз', exact: true })).toHaveAttribute('aria-pressed', 'true');
+  await page.getByRole('button', { name: 'Источники обновлений', exact: true }).click();
+  await page.getByRole('button', { name: 'Добавить источник' }).click();
+  await page.getByLabel('Название', { exact: true }).last().fill('Тестовая репа');
+  await page.getByLabel('URL Git-репозитория').last().fill('https://git.example.org/pipu/testing.git');
+  await page.getByRole('button', { name: 'Сохранить', exact: true }).click();
+  await expect(page.getByRole('dialog')).not.toBeVisible();
+  await page.getByLabel('Источник', { exact: true }).selectOption({ label: 'Тестовая репа' });
+  await page.getByRole('button', { name: 'Выбрать версию', exact: true }).click();
+  await page.getByLabel('Версия', { exact: true }).selectOption('v1.10.0');
+  await page.getByRole('button', { name: 'Установить обновление', exact: true }).click();
+  const dialog = page.getByRole('dialog');
+  await expect(dialog).toContainText('Тестовая репа');
+  await expect(dialog).toContainText('v1.10.0');
+  await dialog.getByRole('button', { name: 'Установить обновление' }).click();
+  await expect(page.getByRole('status').filter({ hasText: 'Выполняется' })).toBeVisible();
+  await expect(page.getByLabel('Журнал выполнения')).toContainText('build and restart');
+  await expect(page.getByRole('button', { name: 'Установить обновление', exact: true })).toBeDisabled();
+  await page.screenshot({ path: 'test-results/server-updates.png', fullPage: true });
+});
+
+test('config keeps secret unchanged, saves local override and applies separately', async ({ page }) => {
+  await login(page, 'mobile-admin', '/admin/config');
+  await expect(page.getByRole('heading', { name: 'Конфигурация', exact: true })).toBeVisible();
+  await expect(page.getByLabel('GITEA_TOKEN · config.local', { exact: true })).toHaveValue('');
+  await page.getByLabel('LOG_LEVEL · config.local', { exact: true }).fill('debug');
+  await expect(page.getByText('В .env есть значение:', { exact: false })).toBeVisible();
+  await page.getByLabel('TRAIN_HOUR · config.local', { exact: true }).fill('6');
+  await expect(page.getByRole('button', { name: 'Применить и перезапустить', exact: true })).toBeDisabled();
+  await page.getByRole('button', { name: 'Сохранить', exact: true }).click();
+  await expect(page.getByText('Изменения сохранены в config.local', { exact: true })).toBeVisible();
+  await expect(page.getByLabel('GITEA_TOKEN · config.local', { exact: true })).toHaveAttribute('placeholder', 'Секрет сохранён');
+  await expect(page.getByText('Выполняется', { exact: true })).not.toBeVisible();
+  await page.getByRole('main').evaluate((element) => { element.scrollTop = 0; });
+  await page.screenshot({ path: 'test-results/server-config.png', fullPage: true });
+  await page.getByRole('button', { name: 'Применить и перезапустить', exact: true }).click();
+  await page.getByRole('dialog').getByRole('button', { name: 'Применить и перезапустить' }).click();
+  await expect(page.getByLabel('Журнал выполнения')).toContainText('build and restart');
+});
+
+test('update delegate can update but cannot open configuration', async ({ page }) => {
+  await login(page, 'update-manager', '/admin/updates');
+  await expect(page.getByRole('heading', { name: 'Обновления', exact: true })).toBeVisible();
+  await page.evaluate(() => { history.pushState({}, '', '/admin/config'); window.dispatchEvent(new PopStateEvent('popstate')); });
+  await expect(page).toHaveURL('/');
+  await expect(page.getByRole('heading', { name: 'Конфигурация', exact: true })).not.toBeVisible();
+});
+
+test('ordinary user is redirected away from server management', async ({ page }) => {
+  await login(page, 'alice', '/admin/updates');
+  await expect(page).toHaveURL('/');
+});

apps/web/src/app/router.tsx

@@ -9,6 +9,8 @@ import {
 } from '@tanstack/react-router';
 import { lazy } from 'react';
 
+const ServerUpdatesPage = lazy(() => import('../features/server-management/UpdatesPage').then((m) => ({ default: m.UpdatesPage })));
+const ServerConfigPage = lazy(() => import('../features/server-management/ConfigPage').then((m) => ({ default: m.ConfigPage })));
 const AuditPage = lazy(() => import('../pages/admin/AuditPage').then((m) => ({ default: m.AuditPage })));
 const LibraryPage = lazy(() => import('../pages/admin/LibraryPage').then((m) => ({ default: m.LibraryPage })));
 const PatternsPage = lazy(() => import('../pages/admin/PatternsPage').then((m) => ({ default: m.PatternsPage })));
@@ -33,6 +35,7 @@ import { SettingsPage } from '../pages/SettingsPage';
 import { SetupPage } from '../pages/SetupPage';
 import { AppShell } from '../widgets/AppShell';
 import { RouteError } from '../widgets/RouteError';
+import { DesktopDownloadsPage } from '../features/desktop/DesktopFeatures';
 
 export interface RouterContext {
   session: AuthSession;
@@ -147,6 +150,9 @@ const homeRoute = createRoute({ getParentRoute: () => appRoute, path: '/', compo
 const trackRoute = createRoute({ getParentRoute: () => appRoute, path: '/track/$id', component: () => <TrackPage key={trackRoute.useParams().id} id={trackRoute.useParams().id} /> });
 const sharedPlaylistRoute = createRoute({ getParentRoute: () => appRoute, path: '/shared/playlist/$shareId', component: () => <PlaylistPage key={sharedPlaylistRoute.useParams().shareId} id={sharedPlaylistRoute.useParams().shareId} shared /> });
 const playlistsRoute = createRoute({ getParentRoute: () => appRoute, path: '/collection/playlists', component: PlaylistsPage });
+const downloadsRoute = createRoute({ getParentRoute: () => appRoute, path: '/collection/downloads', component: DesktopDownloadsPage,
+  beforeLoad: ({ context }) => { if (!context.desktop) throw redirect({ to: '/settings' }); },
+});
 const playlistRoute = createRoute({ getParentRoute: () => appRoute, path: '/playlist/$id', component: () => <PlaylistPage id={playlistRoute.useParams().id} /> });
 
 const settingsRoute = createRoute({ getParentRoute: () => appRoute, path: '/settings', component: SettingsPage });
@@ -270,6 +276,14 @@ const adminSettingsRoute = createRoute({
   component: AdminSettingsPage,
 });
 
+const serverUpdatesRoute = createRoute({
+  getParentRoute: () => appRoute, path: '/admin/updates', component: ServerUpdatesPage,
+  beforeLoad: ({ context }) => {
+    if (context.user.role !== 'admin' && !context.user.manages_updates) throw redirect({ to: '/' });
+  },
+});
+const serverConfigRoute = createRoute({ getParentRoute: () => appRoute, path: '/admin/config', beforeLoad: adminOnly, component: ServerConfigPage });
+
 const routeTree = rootRoute.addChildren([
   downloadAppRoute,
   androidAppRoute,
@@ -281,6 +295,7 @@ const routeTree = rootRoute.addChildren([
     homeRoute,
     trackRoute,
     playlistsRoute,
+    downloadsRoute,
     sharedPlaylistRoute,
     playlistRoute,
     settingsRoute,
@@ -299,6 +314,8 @@ const routeTree = rootRoute.addChildren([
     myUploadsRoute,
     uploadQueueRoute,
     adminSettingsRoute,
+    serverUpdatesRoute,
+    serverConfigRoute,
   ]),
 ]);
 

apps/web/src/desktop.test.ts

@@ -1,12 +1,29 @@
 import { afterEach, describe, expect, it, vi } from 'vitest';
+import { AuthSession, type AuthUser } from '@pipu/core';
 
-import { createDesktop, isDesktop } from './desktop';
+import { createDesktop, desktopFetch, isDesktop } from './desktop';
 
 afterEach(() => {
   vi.unstubAllGlobals();
 });
 
 describe('desktop bridge', () => {
+  it('restores the last desktop user when the proxy cannot reach the server', async () => {
+    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('offline', { status: 502, headers: { 'x-pipu-transport-error': '1' } })));
+    const user = { id: 'alice', username: 'alice' } as AuthUser;
+    const clear = vi.fn();
+    const session = new AuthSession({ clientType: 'desktop', fetch: desktopFetch, baseUrl: 'http://local', refreshStore: {
+      get: async () => 'refresh', set: vi.fn(), clear, getUser: async () => user,
+    } });
+    expect(await session.restore()).toEqual({ status: 'signed_in', offline: true, user });
+    expect(clear).not.toHaveBeenCalled();
+  });
+  it('reports a failed proxy hop as a network failure, preserving real HTTP errors', async () => {
+    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('offline', { status: 502, headers: { 'x-pipu-transport-error': '1' } })));
+    await expect(desktopFetch('http://local/api')).rejects.toThrow('Server unavailable');
+    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('denied', { status: 401 })));
+    expect((await desktopFetch('http://local/api')).status).toBe(401);
+  });
   it('is inactive in the browser', () => {
     expect(isDesktop()).toBe(false);
   });

apps/web/src/desktop.ts

@@ -14,11 +14,19 @@ export function isDesktop(): boolean {
   return api() !== undefined;
 }
 
-function invoke<T>(cmd: string, args?: Record<string, unknown>): Promise<T> {
+/** A failed loopback hop must behave like a network failure to offline auth restore. */
+export const desktopFetch: typeof fetch = async (input, init) => {
+  const response = await fetch(input, init);
+  if (response.headers.get('x-pipu-transport-error') === '1') throw new TypeError('Server unavailable');
+  return response;
+};
+
+export function desktopInvoke<T>(cmd: string, args?: Record<string, unknown>): Promise<T> {
   const tauri = api();
   if (!tauri) throw new Error('Tauri API unavailable');
   return tauri.core.invoke(cmd, args) as Promise<T>;
 }
+const invoke = desktopInvoke;
 
 export type DesktopHandle = {
   proxyBase: string;

apps/web/src/entities/catalog.tsx

@@ -4,6 +4,7 @@ import { Link } from '@tanstack/react-router';
 import { useVirtualizer } from '@tanstack/react-virtual';
 import { Fragment, useRef, useState, type CSSProperties, type MouseEvent, type ReactNode } from 'react';
 import { AddToPlaylist } from './playlists';
+import { SaveOfflineButton } from '../features/desktop/DesktopFeatures';
 import { useTranslation } from 'react-i18next';
 
 import { useSession } from '../app/session';
@@ -218,6 +219,7 @@ export function TrackList({
           </Link>
         )}
         <span className={s.end} data-playlist-actions={actions ? true : undefined}>
+          {!actions && <SaveOfflineButton track={tr} compact />}
           {actions ? actions(tr, i) : <AddToPlaylist trackIds={[tr.id]} compact />}
           {disliked ? (
             <button

apps/web/src/features/desktop/DesktopFeatures.tsx

@@ -0,0 +1,147 @@
+import { releaseNotesText, type Track } from '@pipu/core';
+import { useEffect, useState, useSyncExternalStore } from 'react';
+import { useTranslation } from 'react-i18next';
+import { useAuthState, useSession } from '../../app/session';
+import { desktopInvoke, useDesktop } from '../../desktop';
+import { TrackList } from '../../entities/catalog';
+import { usePlayer, usePlayerState } from '../../player/context';
+import { Button, Dialog, FormError } from '../../shared/ui/ui';
+import { formatBytes } from '../../shared/lib/format';
+import { checkIcon, downloadIcon } from '../../shared/ui/icons';
+import s from '../../pages/page.module.css';
+
+export function useOffline() {
+  const offline = usePlayer().offline;
+  useSyncExternalStore(offline?.subscribe ?? (() => () => undefined), offline?.snapshot ?? (() => 0));
+  return offline;
+}
+
+export function SaveOfflineButton({ track, compact = false }: { track: Track; compact?: boolean }) {
+  const offline = useOffline();
+  const { t } = useTranslation();
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState(false);
+  if (!offline) return null;
+  return <span>
+    <Button busy={busy} disabled={!track.available} icon={offline.pinned(track.id) ? checkIcon : downloadIcon}
+      aria-label={t(offline.pinned(track.id) ? 'desktop.remove_download' : 'desktop.save_track')}
+      title={t(offline.pinned(track.id) ? 'desktop.remove_download' : 'desktop.save_track')} onClick={() => {
+      setBusy(true); setError(false);
+      void (offline.pinned(track.id) ? offline.remove(track.id) : offline.save(track, true))
+        .catch(() => setError(true)).finally(() => setBusy(false));
+    }}>{compact ? null : t(offline.pinned(track.id) ? 'desktop.remove_download' : 'desktop.save_track')}</Button>
+    {error && <span role="alert">{t('desktop.download_failed')}</span>}
+  </span>;
+}
+
+export function DesktopOfflineSection() {
+  const offline = useOffline();
+  const { track } = usePlayerState();
+  const { t, i18n } = useTranslation();
+  const [error, setError] = useState(false);
+  useEffect(() => { void offline?.ready.catch(() => setError(true)); }, [offline]);
+  if (!offline) return null;
+  const tracks = offline.tracks();
+  return <section className={s.section}>
+    <h2>{t('desktop.offline')}</h2>
+    <p className={s.note}>{t('desktop.cache_hint')}</p>
+    <div className={s.toolbar}>
+      <span>{formatBytes(offline.bytes, i18n.language)}</span>
+      <Button onClick={() => void offline.clearRecent().catch(() => setError(true))}>{t('desktop.clear_recent')}</Button>
+      {track && <SaveOfflineButton track={track} />}
+    </div>
+    <FormError>{error ? t('desktop.storage_failed') : null}</FormError>
+    {tracks.length > 0 ? <TrackList tracks={tracks} context={{ type: 'collection', id: 'offline' }} actions={(track) => <SaveOfflineButton track={track} compact />} /> : <p>{t('desktop.offline_empty')}</p>}
+  </section>;
+}
+
+export function DesktopDownloadsPage() {
+  const { t } = useTranslation();
+  return <div className={s.page}><h1>{t('desktop.offline')}</h1><DesktopOfflineSection /></div>;
+}
+
+export function DesktopOfflineBanner() {
+  const state = useAuthState();
+  const desktop = useDesktop();
+  const { t } = useTranslation();
+  return desktop && state.status === 'signed_in' && state.offline ? <p role="status">{t('mobile.offline')}</p> : null;
+}
+
+type Release = { build: { version: string; size: number }; notes: string };
+type Update = { status: 'idle' | 'checking' | 'latest' | 'error' | 'available' | 'installing' | 'ready'; release?: Release; dismissed?: boolean; progress?: number };
+let update: Update = { status: 'idle' };
+let generation = 0;
+const listeners = new Set<() => void>();
+function setUpdate(value: Update) { update = value; for (const fn of listeners) fn(); }
+const subscribe = (fn: () => void) => { listeners.add(fn); return () => { listeners.delete(fn); }; };
+function useUpdate() { return useSyncExternalStore(subscribe, () => update); }
+async function checkUpdate(server: string, manual = false) {
+  if (update.status === 'checking' || update.status === 'installing') return;
+  const key = `pipu.update.checked.${server}`;
+  if (!manual && Date.now() - Number(localStorage.getItem(key) ?? 0) < 6 * 60 * 60 * 1000) return;
+  setUpdate({ status: 'checking' });
+  const requestGeneration = generation;
+  try {
+    const release = await desktopInvoke<Release | null>('update_check');
+    if (requestGeneration !== generation) return;
+    localStorage.setItem(key, String(Date.now()));
+    setUpdate(release ? { status: 'available', release } : { status: manual ? 'latest' : 'idle' });
+  } catch { if (requestGeneration === generation) setUpdate({ status: manual ? 'error' : 'idle' }); }
+}
+
+export function DesktopUpdateButton() {
+  const desktop = useDesktop();
+  const state = useUpdate();
+  const { t } = useTranslation();
+  if (!desktop?.server) return null;
+  return <section className={s.section}>
+    <h2>{t('desktop.updates')}</h2>
+    <Button busy={state.status === 'checking'} disabled={state.status === 'installing'} onClick={() => void checkUpdate(desktop.server!, true)}>{t('mobile.update_check')}</Button>
+    {state.status === 'latest' && <p role="status">{t('mobile.update_latest')}</p>}
+    {state.status === 'error' && !state.release && <FormError>{t('desktop.check_failed')}</FormError>}
+  </section>;
+}
+
+export function DesktopUpdateDialog() {
+  const desktop = useDesktop();
+  const session = useSession();
+  const state = useUpdate();
+  const { t } = useTranslation();
+  useEffect(() => {
+    if (!desktop?.server) return;
+    const check = () => void checkUpdate(desktop.server!);
+    check();
+    window.addEventListener('focus', check);
+    return () => { window.removeEventListener('focus', check); generation++; setUpdate({ status: 'idle' }); };
+  }, [desktop, session]);
+  useEffect(() => {
+    if (!desktop) return;
+    let stop: (() => void) | undefined;
+    let disposed = false;
+    // The native updater emits progress through the same Tauri event surface as media controls.
+    const api = (window as Window & { __TAURI__?: { event: { listen: (name: string, fn: (e: { payload: string }) => void) => Promise<() => void> } } }).__TAURI__;
+    void api?.event.listen('update-progress', (e) => {
+      const progress = Number(e.payload);
+      if (update.status === 'installing' && Number.isFinite(progress)) setUpdate({ ...update, progress: Math.min(1, Math.max(0, progress)) });
+    }).then((fn) => { if (disposed) fn(); else stop = fn; });
+    return () => { disposed = true; stop?.(); };
+  }, [desktop]);
+  if (!desktop || !state.release || state.dismissed) return null;
+  const release = state.release;
+  const busy = state.status === 'installing';
+  const close = () => { if (!busy) setUpdate({ ...state, dismissed: true }); };
+  const notes = releaseNotesText(release.notes);
+  return <Dialog title={t('mobile.update_title', { version: release.build.version })} onClose={close} footer={<>
+    <Button disabled={busy} onClick={close}>{t('mobile.update_later')}</Button>
+    <Button busy={busy} onClick={() => {
+      setUpdate({ status: 'installing', release, progress: 0 });
+      void desktopInvoke('update_install').then(() => setUpdate({ status: 'ready', release })).catch(() => setUpdate({ status: 'error', release }));
+    }}>{t('mobile.update_install')}</Button>
+  </>}>
+    {notes && <p style={{ whiteSpace: 'pre-wrap', overflowWrap: 'anywhere', maxHeight: '35vh', overflowY: 'auto' }}>{notes}</p>}
+    <p>{t('mobile.update_size', { size: (release.build.size / 1048576).toFixed(1) })}</p>
+    {busy && <p role="status">{t('mobile.update_downloading', { percent: Math.round((state.progress ?? 0) * 100) })}</p>}
+    {state.status === 'ready' && <p role="status">{t('desktop.installer_open')}</p>}
+    {state.status === 'error' && <FormError>{t('mobile.update_failed')}</FormError>}
+  </Dialog>;
+}

apps/web/src/features/desktop/offline.test.ts

@@ -0,0 +1,30 @@
+import { afterEach, describe, expect, it, vi } from 'vitest';
+import type { AuthSession, PlayEvent } from '@pipu/core';
+import { desktopEventSink, evictRecent, offlineOwner } from './offline';
+import { createDesktop } from '../../desktop';
+import { albumTracks } from '../../test/fakeApi';
+
+afterEach(() => {
+  localStorage.clear();
+  delete (window as Window & { __TAURI__?: unknown }).__TAURI__;
+});
+
+describe('desktop cache policy', () => {
+  it('evicts oldest recent files while keeping manual downloads outside the limit', () => {
+    const entry = (id: string, used: number, pinned = false) => ({ id, used, pinned, track: albumTracks[0]!, audio: { size: 60 } as Blob });
+    expect(evictRecent([entry('new', 3), entry('manual', 0, true), entry('old', 1), entry('middle', 2)], 100)).toEqual(['old', 'middle']);
+  });
+});
+
+it('persists offline events across sink restarts and deduplicates retries', async () => {
+  (window as Window & { __TAURI__?: unknown }).__TAURI__ = { core: { invoke: async () => ({ proxyBase: 'http://local', server: 'https://music.example' }) } };
+  await createDesktop();
+  const post = vi.fn().mockRejectedValueOnce(new TypeError('offline')).mockResolvedValue({ data: {}, response: new Response('{}') });
+  const session = { state: { status: 'signed_in', user: { id: 'alice' } }, client: { POST: post } } as unknown as AuthSession;
+  const owner = offlineOwner(session)!;
+  const event: PlayEvent = { id: 'one', type: 'play_start', occurred_at: new Date().toISOString(), track_id: 'track' };
+  await expect(desktopEventSink(session, owner)([event])).rejects.toThrow('offline');
+  await desktopEventSink(session, owner)([event]);
+  expect(post.mock.calls[1]?.[1].body.events).toEqual([event]);
+  expect(JSON.parse(localStorage.getItem(`pipu.events.${owner}`)!)).toEqual([]);
+});

apps/web/src/features/desktop/offline.ts

@@ -0,0 +1,181 @@
+import { unwrap, type AuthSession, type PlayEvent, type Track } from '@pipu/core';
+import { desktopHandle } from '../../desktop';
+
+export const RECENT_LIMIT = 500 * 1024 * 1024;
+type Entry = { id: string; track: Track; audio: Blob; cover?: Blob; pinned: boolean; used: number };
+const size = (e: Entry) => e.audio.size + (e.cover?.size ?? 0);
+
+export function evictRecent(entries: Entry[], limit = RECENT_LIMIT): string[] {
+  let total = entries.filter((e) => !e.pinned).reduce((n, e) => n + size(e), 0);
+  const removed: string[] = [];
+  for (const e of entries.filter((e) => !e.pinned).sort((a, b) => a.used - b.used)) {
+    if (total <= limit) break;
+    removed.push(e.id);
+    total -= size(e);
+  }
+  return removed;
+}
+
+export function offlineOwner(session: AuthSession): string | null {
+  const desktop = desktopHandle();
+  return desktop?.server && session.state.status === 'signed_in'
+    ? JSON.stringify([desktop.server, session.state.user.id]) : null;
+}
+
+/** WebView IndexedDB is persistent across desktop restarts; signed URLs are never stored. */
+export class DesktopOffline {
+  private db: Promise<IDBDatabase> | null = null;
+  private loaded: Promise<void> | null = null;
+  private entries: Entry[] = [];
+  private urls = new Map<string, Track>();
+  private objects = new Map<string, string[]>();
+  private inUse = new Set<string>();
+  private listeners = new Set<() => void>();
+  private revision = 0;
+  private writes: Promise<unknown> = Promise.resolve();
+  private disposed = false;
+  get ready(): Promise<void> {
+    this.loaded ??= this.reload();
+    return this.loaded;
+  }
+  activate() { this.disposed = false; }
+  constructor(readonly owner: string, private session: AuthSession) {}
+  private database(): Promise<IDBDatabase> {
+    return this.db ??= new Promise((resolve, reject) => {
+      const request = indexedDB.open(`pipu.offline.${this.owner}`, 1);
+      request.onupgradeneeded = () => request.result.createObjectStore('tracks', { keyPath: 'id' });
+      request.onsuccess = () => resolve(request.result);
+      request.onerror = () => reject(request.error);
+    });
+  }
+  subscribe = (fn: () => void) => { this.listeners.add(fn); return () => { this.listeners.delete(fn); }; };
+  snapshot = () => this.revision;
+  private async reload() {
+    const db = await this.database();
+    const entries = await new Promise<Entry[]>((resolve, reject) => {
+      const req = db.transaction('tracks').objectStore('tracks').getAll();
+      req.onsuccess = () => resolve(req.result as Entry[]);
+      req.onerror = () => reject(req.error);
+    });
+    if (this.disposed) return;
+    this.entries = entries;
+    for (const e of entries) {
+      if (this.urls.has(e.id)) continue;
+      const audio = URL.createObjectURL(e.audio);
+      const cover = e.cover ? URL.createObjectURL(e.cover) : null;
+      this.objects.set(e.id, [...(this.objects.get(e.id) ?? []), audio, ...(cover ? [cover] : [])]);
+      this.urls.set(e.id, { ...e.track, stream_url: audio, available: true, album: { ...e.track.album, cover_url: cover } });
+    }
+    for (const id of this.urls.keys()) if (!entries.some((e) => e.id === id)) {
+      this.urls.delete(id);
+      if (!this.inUse.has(id)) this.release(id);
+    }
+    this.revision++;
+    for (const fn of this.listeners) fn();
+  }
+  tracks() { return this.entries.map((e) => this.local(e.track)); }
+  private release(id: string) {
+    for (const url of this.objects.get(id) ?? []) URL.revokeObjectURL(url);
+    this.objects.delete(id);
+  }
+  /** Keep only files currently playing/crossfading alive after cache deletion. */
+  keep(ids: string[]) {
+    this.inUse = new Set(ids);
+    for (const id of this.objects.keys()) if (!this.inUse.has(id) && !this.urls.has(id)) this.release(id);
+  }
+  local(track: Track): Track { return this.urls.get(track.id) ?? track; }
+  has(id: string) { return this.entries.some((e) => e.id === id); }
+  pinned(id: string) { return this.entries.some((e) => e.id === id && e.pinned); }
+  get bytes() { return this.entries.reduce((n, e) => n + size(e), 0); }
+  private mutate(fn: (store: IDBObjectStore) => void): Promise<void> {
+    const work = this.writes.catch(() => undefined).then(async () => {
+      const db = await this.database();
+      await new Promise<void>((resolve, reject) => {
+        const tx = db.transaction('tracks', 'readwrite');
+        fn(tx.objectStore('tracks'));
+        tx.oncomplete = () => resolve();
+        tx.onerror = () => reject(tx.error);
+        tx.onabort = () => reject(tx.error);
+      });
+      await this.reload();
+    });
+    this.writes = work;
+    return work;
+  }
+  private downloads = new Map<string, Promise<void>>();
+  private downloadTail: Promise<unknown> = Promise.resolve();
+  async save(track: Track, pinned = false): Promise<void> {
+    await this.ready;
+    const pending = this.downloads.get(track.id);
+    if (pending) { await pending; return this.save(track, pinned); }
+    const existing = this.entries.find((e) => e.id === track.id);
+    if (existing) {
+      await this.mutate((store) => {
+        const latest = this.entries.find((e) => e.id === track.id);
+        if (latest) store.put({ ...latest, pinned: latest.pinned || pinned, used: Date.now() });
+      });
+      return;
+    }
+    const job = this.downloadTail.catch(() => undefined).then(() => this.download(track, pinned));
+    this.downloadTail = job;
+    this.downloads.set(track.id, job);
+    try { await job; } finally { this.downloads.delete(track.id); }
+  }
+  private async download(track: Track, pinned: boolean) {
+    if (this.disposed) return;
+    const fresh = unwrap(await this.session.client.POST('/api/v1/tracks/batch', { body: { ids: [track.id] } })).items[0];
+    if (!fresh?.available || !fresh.stream_url) throw new Error('Track unavailable');
+    const response = await fetch(fresh.stream_url);
+    if (!response.ok) throw new Error('Download failed');
+    const audio = await response.blob();
+    if (!audio.size) throw new Error('Empty download');
+    let cover: Blob | undefined;
+    if (fresh.album.cover_url) {
+      try {
+        const response = await fetch(`${fresh.album.cover_url}&size=300`);
+        if (response.ok) cover = await response.blob();
+      } catch { /* Artwork is optional. */ }
+    }
+    if (this.disposed) return;
+    const entry: Entry = { id: track.id, track: { ...fresh, stream_url: null, album: { ...fresh.album, cover_url: null } }, audio, cover, pinned, used: Date.now() };
+    await this.mutate((store) => {
+      const removed = evictRecent([...this.entries.filter((e) => e.id !== entry.id), entry]);
+      for (const id of removed) store.delete(id);
+      if (!removed.includes(entry.id)) store.put(entry);
+    });
+  }
+  async remove(id: string) { await this.mutate((store) => store.delete(id)); }
+  async clearRecent() { await this.mutate((store) => { for (const e of this.entries) if (!e.pinned) store.delete(e.id); }); }
+  dispose() {
+    this.disposed = true;
+    queueMicrotask(() => {
+      if (!this.disposed) return;
+      for (const id of this.objects.keys()) this.release(id);
+      void this.downloadTail.catch(() => undefined).then(() => this.writes)
+        .finally(() => this.db?.then((db) => db.close())).catch(() => undefined);
+    });
+  }
+}
+
+/** Persist before sending; retries keep event IDs for server-side deduplication. */
+export function desktopEventSink(session: AuthSession, owner: string) {
+  const key = `pipu.events.${owner}`;
+  let sending = Promise.resolve();
+  return async (events: PlayEvent[]) => {
+    const work = sending.catch(() => undefined).then(async () => {
+      const old = JSON.parse(localStorage.getItem(key) ?? '[]') as PlayEvent[];
+      const merged = [...new Map([...old, ...events].map((e) => [e.id, e])).values()];
+      localStorage.setItem(key, JSON.stringify(merged));
+      if (offlineOwner(session) !== owner) return;
+      while (merged.length) {
+        if (offlineOwner(session) !== owner) return;
+        const batch = merged.slice(0, 100);
+        unwrap(await session.client.POST('/api/v1/events', { body: { events: batch } }));
+        merged.splice(0, batch.length);
+        localStorage.setItem(key, JSON.stringify(merged));
+      }
+    });
+    sending = work;
+    await work;
+  };
+}

apps/web/src/features/server-management/ConfigPage.tsx

@@ -0,0 +1,84 @@
+import type { components } from '@pipu/api-client';
+import { unwrap } from '@pipu/core';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { useEffect, useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { useSession } from '../../app/session';
+import { useErrorText } from '../../shared/lib/errors';
+import { Button, Dialog, Field, FormError, PageSkeleton } from '../../shared/ui/ui';
+import { JobPanel } from './JobPanel';
+import s from './management.module.css';
+
+export function ConfigPage() {
+  const { t } = useTranslation('admin');
+  const session = useSession();
+  const errorText = useErrorText();
+  const qc = useQueryClient();
+  const [draft, setDraft] = useState<Record<string, string | null>>({});
+  const [baseRevision, setBaseRevision] = useState<string | null>(null);
+  const [search, setSearch] = useState('');
+  const [group, setGroup] = useState('all');
+  const [confirm, setConfirm] = useState(false);
+  const [saved, setSaved] = useState(false);
+  const dirty = Object.keys(draft).length > 0;
+  const query = useQuery({ queryKey: ['server-config'], queryFn: async () => unwrap(await session.client.GET('/api/v1/admin/server/config')), retry: false });
+  const status = useQuery({ queryKey: ['server-updates', 'config'], queryFn: async () => unwrap(await session.client.GET('/api/v1/admin/server/updates')), refetchInterval: 3000, retry: false });
+  const running = status.data?.job?.state === 'running';
+  useEffect(() => {
+    if (!dirty) return;
+    const prevent = (e: BeforeUnloadEvent) => { e.preventDefault(); };
+    window.addEventListener('beforeunload', prevent);
+    return () => window.removeEventListener('beforeunload', prevent);
+  }, [dirty]);
+  useEffect(() => {
+    if (status.data?.job?.state === 'succeeded') void qc.invalidateQueries({ queryKey: ['server-config'] });
+  }, [status.data?.job?.id, status.data?.job?.state, qc]);
+  const save = useMutation({
+    mutationFn: async () => unwrap(await session.client.PATCH('/api/v1/admin/server/config', { body: { revision: baseRevision ?? query.data!.revision, values: draft } })),
+    onSuccess: (data) => { qc.setQueryData(['server-config'], data); setDraft({}); setBaseRevision(null); setSaved(true); },
+  });
+  const apply = useMutation({
+    mutationFn: async () => unwrap(await session.client.POST('/api/v1/admin/server/config/apply')),
+    onSuccess: (job) => {
+      setConfirm(false);
+      qc.setQueryData<components['schemas']['ServerUpdates']>(['server-updates', 'config'], (old) => old ? { ...old, job } : old);
+      void qc.invalidateQueries({ queryKey: ['server-updates'] });
+    },
+  });
+  const change = (key: string, value: string | null) => {
+    setBaseRevision((v) => v ?? query.data!.revision);
+    setDraft((v) => ({ ...v, [key]: value })); setSaved(false); save.reset();
+  };
+  if (query.isPending) return <PageSkeleton />;
+  const entries = query.data?.entries.filter((e) => (group === 'all' || e.group === group) && `${e.key} ${e.group}`.toLowerCase().includes(search.toLowerCase())) ?? [];
+  return <div className={s.page}>
+    <header className={s.header}><div><span className={s.eyebrow}>{t('management.server')}</span><h1>{t('management.config')}</h1><p>{t('management.config_intro')}</p></div></header>
+    {query.error && <FormError>{errorText(query.error)}</FormError>}
+    {query.data && <>
+      <section className={s.hero}><div><span className={s.eyebrow}>{t('management.priority')}</span><strong className={s.priority}>ENV → config.local → {t('management.defaults')}</strong></div><p>{t('management.priority_hint')}</p></section>
+      <div className={s.toolbar}><Field type="search" label={t('management.search')} value={search} onChange={setSearch} /><label className={s.selectLabel}>{t('management.group')}<select value={group} onChange={(e) => setGroup(e.target.value)}><option value="all">{t('management.all')}</option>{[...new Set(query.data.entries.map((v) => v.group))].map((v) => <option key={v} value={v}>{t(`management.groups.${v}`, { defaultValue: v })}</option>)}</select></label></div>
+      <p className={s.note}>{t('management.config_files_hint')}</p>
+      <div className={s.configList}>{entries.map((entry) => {
+        const changed = Object.hasOwn(draft, entry.key);
+        const value = changed ? draft[entry.key] ?? '' : entry.secret ? '' : entry.local ?? '';
+        return <section className={s.configRow} key={entry.key} data-changed={changed || undefined}>
+          <div className={s.configMeta}><code>{entry.key}</code><span className={s.tag}>{t(`management.groups.${entry.group}`, { defaultValue: entry.group })}</span><span className={s.note}>{t(`management.value_source.${entry.source}`)}</span></div>
+          <div className={s.values}><span>{t('management.effective')}: <code>{entry.effective || '—'}</code></span><span>ENV: <code>{entry.env ?? '—'}</code></span></div>
+          {entry.readonly ? <p className={s.note}>{t('management.readonly')}</p> : <div className={s.editor}>
+            <Field label={`${entry.key} · config.local`} type={entry.secret ? 'password' : 'text'} value={value} disabled={running || save.isPending} placeholder={entry.secret && entry.local ? t('management.secret_saved') : entry.default_value} hint={changed && draft[entry.key] === null ? t('management.will_reset') : entry.env !== null ? t('management.overridden') : entry.secret ? t('management.secret_hint') : `${t('management.default')}: ${entry.default_value || '—'}`} onChange={(v) => change(entry.key, v)} mono />
+            <Button disabled={running || save.isPending || (!changed && entry.local === null)} onClick={() => change(entry.key, null)}>{t('management.reset')}</Button>
+          </div>}
+        </section>;
+      })}</div>
+      {!entries.length && <p className={s.note}>{t('management.no_results')}</p>}
+      <section className={s.saveBar}>
+        <div role="status">{saved ? t('management.saved') : dirty ? t('management.unsaved', { count: Object.keys(draft).length }) : query.data.restart_required ? t('management.pending_restart') : t('management.no_changes')}</div>
+        <div className={s.actions}><Button disabled={!dirty || save.isPending} onClick={() => { setDraft({}); setBaseRevision(null); save.reset(); }}>{t('management.discard')}</Button><Button variant="primary" disabled={!dirty || running} busy={save.isPending} onClick={() => save.mutate()}>{t('management.save')}</Button><Button disabled={dirty || running || !query.data.restart_required} busy={apply.isPending} onClick={() => { apply.reset(); setConfirm(true); }}>{t('management.apply')}</Button></div>
+      </section>
+      {save.error && <FormError>{errorText(save.error)}</FormError>}
+      {apply.error && <FormError>{errorText(apply.error)}</FormError>}
+      <JobPanel job={status.data?.job} reconnecting={status.isError} />
+    </>}
+    {confirm && <Dialog title={t('management.apply')} onClose={() => !apply.isPending && setConfirm(false)}><p>{t('management.apply_warning')}</p>{apply.error && <FormError>{errorText(apply.error)}</FormError>}<div className={s.actions}><Button disabled={apply.isPending} onClick={() => setConfirm(false)}>{t('management.cancel')}</Button><Button variant="primary" busy={apply.isPending} onClick={() => apply.mutate()}>{t('management.apply')}</Button></div></Dialog>}
+  </div>;
+}

apps/web/src/features/server-management/JobPanel.tsx

@@ -0,0 +1,20 @@
+import type { components } from '@pipu/api-client';
+import { useTranslation } from 'react-i18next';
+import s from './management.module.css';
+
+export type Job = components['schemas']['ServerJob'];
+
+export function JobPanel({ job, reconnecting }: { job: Job | null | undefined; reconnecting?: boolean }) {
+  const { t } = useTranslation('admin');
+  if (!job) return null;
+  return <section className={s.card} aria-label={t('management.job')}>
+    <div className={s.cardHead}>
+      <div><span className={s.eyebrow}>{t('management.job')}</span><h2>{job.target}</h2></div>
+      <span className={s.status} data-state={job.state} role="status">{t(`management.state.${job.state}`)}</span>
+    </div>
+    <p className={s.note}>{t('management.started')}: {new Date(job.started_at).toLocaleString()}
+      {job.finished_at && <> · {t('management.finished')}: {new Date(job.finished_at).toLocaleString()}</>}</p>
+    {job.state === 'running' && <p className={s.note}>{t(reconnecting ? 'management.reconnecting' : 'management.running_hint')}</p>}
+    <pre className={s.log} tabIndex={0} aria-label={t('management.log')}>{job.log || t('management.waiting')}</pre>
+  </section>;
+}

apps/web/src/features/server-management/UpdatesPage.tsx

@@ -0,0 +1,92 @@
+import type { components } from '@pipu/api-client';
+import { unwrap } from '@pipu/core';
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { useSession } from '../../app/session';
+import { useErrorText } from '../../shared/lib/errors';
+import { Button, Dialog, Field, FormError, PageSkeleton, Segmented } from '../../shared/ui/ui';
+import { JobPanel } from './JobPanel';
+import s from './management.module.css';
+
+type Source = components['schemas']['ServerSource'];
+type Channel = components['schemas']['ServerUpdateRequest']['channel'];
+
+export function UpdatesPage() {
+  const { t } = useTranslation('admin');
+  const session = useSession();
+  const qc = useQueryClient();
+  const errorText = useErrorText();
+  const [sourceId, setSourceId] = useState('');
+  const [channel, setChannel] = useState<Channel>('latest');
+  const [version, setVersion] = useState('');
+  const [confirm, setConfirm] = useState(false);
+  const [editing, setEditing] = useState<Source[] | null>(null);
+  const query = useQuery({
+    queryKey: ['server-updates', sourceId],
+    queryFn: async () => unwrap(await session.client.GET('/api/v1/admin/server/updates', {
+      params: { query: { source_id: sourceId || undefined } },
+    })),
+    refetchInterval: 3000,
+    retry: false,
+  });
+  const source = query.data?.sources.find((v) => v.id === sourceId) ?? query.data?.sources[0];
+  const running = query.data?.job?.state === 'running';
+  const refresh = () => qc.invalidateQueries({ queryKey: ['server-updates'] });
+  const save = useMutation({
+    mutationFn: async (sources: Source[]) => unwrap(await session.client.PUT('/api/v1/admin/server/update-sources', { body: { sources } })),
+    onSuccess: () => { setEditing(null); setSourceId(''); void refresh(); },
+  });
+  const start = useMutation({
+    mutationFn: async () => unwrap(await session.client.POST('/api/v1/admin/server/updates', {
+      body: { source_id: source!.id, channel, version: channel === 'version' ? version : undefined },
+    })),
+    onSuccess: (job) => {
+      setConfirm(false);
+      qc.setQueryData<components['schemas']['ServerUpdates']>(['server-updates', sourceId], (old) => old ? { ...old, job } : old);
+      void refresh();
+    },
+  });
+  if (query.isPending) return <PageSkeleton />;
+  return <div className={s.page}>
+    <header className={s.header}><div><span className={s.eyebrow}>{t('management.server')}</span><h1>{t('management.updates')}</h1><p>{t('management.updates_intro')}</p></div>
+      <Button onClick={() => void query.refetch()} busy={query.isFetching}>{t('management.refresh')}</Button>
+    </header>
+    {query.error && <FormError>{errorText(query.error)}</FormError>}
+    {query.data && <>
+      <section className={s.hero}><div><span className={s.eyebrow}>{t('management.current')}</span><strong>{query.data.current_version || '—'}</strong></div><p>{t('management.manual')}</p></section>
+      <section className={s.card}>
+        <div className={s.cardHead}><h2>{t('management.update_target')}</h2><Button disabled={running} onClick={() => { save.reset(); setEditing(query.data.sources.map((v) => ({ ...v }))); }}>{t('management.sources')}</Button></div>
+        <label className={s.selectLabel}>{t('management.source')}
+          <select aria-label={t('management.source')} value={source?.id ?? ''} disabled={running || start.isPending} onChange={(e) => { setSourceId(e.target.value); setVersion(''); start.reset(); }}>
+            {query.data.sources.map((v) => <option key={v.id} value={v.id}>{v.name}</option>)}
+          </select>
+        </label>
+        <p className={s.url}>{source?.url}</p>
+        <Segmented label={t('management.channel')} value={channel} options={(['latest', 'version', 'main'] as const).map((value) => ({ value, label: t(`management.channel_${value}`) }))} onChange={(v) => { setChannel(v); start.reset(); }} />
+        <p className={s.note}>{t(`management.hint_${channel}`)}</p>
+        {channel === 'version' && <label className={s.selectLabel}>{t('management.version')}<select aria-label={t('management.version')} value={version} onChange={(e) => setVersion(e.target.value)}><option value="">{t('management.choose_version')}</option>{query.data.versions.map((v) => <option key={v} value={v}>{v}</option>)}</select></label>}
+        {query.data.source_error && <FormError>{t('management.source_unavailable')}</FormError>}
+        {start.error && <FormError>{errorText(start.error)}</FormError>}
+        <div className={s.actions}><Button variant="primary" disabled={!source || running || !!query.data.source_error || (channel === 'version' && !version)} busy={start.isPending} onClick={() => { start.reset(); setConfirm(true); }}>{t('management.install')}</Button></div>
+      </section>
+      <JobPanel job={query.data.job} reconnecting={query.isError} />
+    </>}
+    {confirm && <Dialog title={t('management.confirm_update')} onClose={() => !start.isPending && setConfirm(false)}>
+      <p>{t('management.confirm_update_text', { source: source?.name, target: channel === 'version' ? version : t(`management.channel_${channel}`) })}</p>
+      <p className={s.note}>{t('management.update_warning')}</p>
+      {start.error && <FormError>{errorText(start.error)}</FormError>}
+      <div className={s.actions}><Button disabled={start.isPending} onClick={() => setConfirm(false)}>{t('management.cancel')}</Button><Button variant="primary" busy={start.isPending} onClick={() => start.mutate()}>{t('management.install')}</Button></div>
+    </Dialog>}
+    {editing && <Dialog title={t('management.sources')} onClose={() => !save.isPending && setEditing(null)}>
+      <p className={s.note}>{t('management.sources_hint')}</p>
+      <div className={s.sourceList}>{editing.map((item, index) => <div className={s.sourceEditor} key={item.id}>
+        <Field label={t('management.source_name')} value={item.name} maxLength={100} onChange={(name) => setEditing(editing.map((v, i) => i === index ? { ...v, name } : v))} />
+        <Field label={t('management.repository')} value={item.url} maxLength={2048} mono onChange={(url) => setEditing(editing.map((v, i) => i === index ? { ...v, url } : v))} />
+        <Button disabled={editing.length === 1 || save.isPending} onClick={() => setEditing(editing.filter((v) => v.id !== item.id))}>{t('management.remove_source')}</Button>
+      </div>)}</div>
+      {save.error && <FormError>{errorText(save.error)}</FormError>}
+      <div className={s.actions}><Button disabled={editing.length >= 20 || save.isPending} onClick={() => setEditing([...editing, { id: crypto.randomUUID(), name: '', url: '' }])}>{t('management.add_source')}</Button><Button variant="primary" disabled={editing.some((v) => !v.name.trim() || !v.url.trim())} busy={save.isPending} onClick={() => save.mutate(editing)}>{t('management.save')}</Button></div>
+    </Dialog>}
+  </div>;
+}

apps/web/src/features/server-management/management.module.css

@@ -0,0 +1,34 @@
+.page { max-width: 1050px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }
+.header, .cardHead { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
+.header h1 { margin: 6px 0; font-family: var(--font-display); font-size: 30px; }
+.header p, .note { color: var(--text2); font-size: 13px; line-height: 1.6; margin: 0; }
+.eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: var(--text2); font-weight: 600; }
+.hero { display: flex; gap: 24px; align-items: center; justify-content: space-between; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(120deg, var(--accent-soft), var(--surface-a)); }
+.hero strong { display: block; font-family: var(--font-display); font-size: 30px; margin-top: 8px; overflow-wrap: anywhere; }
+.hero strong.priority { font-size: 19px; }
+.hero p { color: var(--text2); max-width: 340px; line-height: 1.6; font-size: 13px; }
+.card { padding: 24px; background: var(--surface-a); border: 1px solid var(--line); border-radius: var(--radius-lg); display: flex; flex-direction: column; gap: 18px; }
+.card h2 { margin: 0; font-size: 18px; }
+.selectLabel { display: flex; flex-direction: column; gap: 8px; font-size: 13px; font-weight: 500; }
+.selectLabel select { height: 42px; padding: 0 12px; font: inherit; color: var(--text); border: 1px solid var(--line); border-radius: 10px; background: var(--surface2); max-width: 100%; }
+.selectLabel select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
+.url { color: var(--text2); font: 12px monospace; overflow-wrap: anywhere; margin: -8px 0 0; }
+.actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
+.status, .tag { padding: 5px 10px; border: 1px solid var(--line); border-radius: 99px; color: var(--text2); font-size: 12px; }
+.status[data-state='running'] { background: var(--accent-soft); color: var(--accent); }
+.status[data-state='succeeded'] { color: var(--ok); }
+.status[data-state='failed'] { color: var(--danger); }
+.log { margin: 0; padding: 18px; border-radius: 12px; background: var(--surface2); border: 1px solid var(--line); max-height: 380px; min-height: 100px; overflow: auto; font-size: 12px; line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }
+.sourceList { display: flex; flex-direction: column; gap: 16px; max-height: 50vh; overflow: auto; margin-bottom: 18px; }
+.sourceEditor { display: flex; flex-direction: column; gap: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; }
+.toolbar { display: grid; grid-template-columns: 1fr 220px; gap: 16px; align-items: end; }
+.configList { display: flex; flex-direction: column; gap: 12px; }
+.configRow { padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-a); display: flex; flex-direction: column; gap: 14px; }
+.configRow[data-changed] { border-color: var(--accent); }
+.configMeta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
+.configMeta > code { font-size: 13px; font-weight: 600; overflow-wrap: anywhere; }
+.values { display: flex; flex-wrap: wrap; gap: 12px 24px; color: var(--text2); font-size: 12px; }
+.values code { overflow-wrap: anywhere; }
+.editor { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; }
+.saveBar { position: sticky; bottom: 12px; z-index: 2; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; padding: 16px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface2); box-shadow: 0 8px 32px #0003; font-size: 13px; }
+@media (max-width: 650px) { .hero { flex-direction: column; align-items: flex-start; gap: 10px; padding: 20px; } .hero p { max-width: none; } .toolbar { grid-template-columns: 1fr; } .editor { grid-template-columns: 1fr; } .card, .configRow { padding: 16px; } .actions { justify-content: flex-start; } }

apps/web/src/main.tsx

@@ -9,7 +9,7 @@ import { I18nextProvider } from 'react-i18next';
 import { App } from './App';
 import { createAppRouter } from './app/router';
 import { applyTheme } from './app/session';
-import { createDesktop, DesktopProvider } from './desktop';
+import { createDesktop, DesktopProvider, desktopFetch } from './desktop';
 
 const LOCALE_KEY = 'pipu.locale';
 
@@ -70,6 +70,7 @@ const session = new AuthSession({
   deviceName: desktop ? 'Pipu / Desktop' : deviceName(),
   baseUrl: desktop?.proxyBase,
   refreshStore: desktop?.refreshStore,
+  fetch: desktop ? desktopFetch : undefined,
 });
 // До первого рендера узнаём, есть ли сессия (refresh-cookie), — guards роутера решают сразу.
 await session.restore();

apps/web/src/pages/SettingsPage.tsx

@@ -13,6 +13,7 @@ import { Button, Field, FormError, Segmented } from '../shared/ui/ui';
 import { LanguageSwitch } from '../widgets/LanguageSwitch';
 import s from './page.module.css';
 import { Onboarding } from './Onboarding';
+import { DesktopOfflineSection, DesktopUpdateButton } from '../features/desktop/DesktopFeatures';
 
 type Theme = NonNullable<components['schemas']['UiPrefs']['theme']>;
 type WaveVariant = NonNullable<components['schemas']['UiPrefs']['wave_variant']>;
@@ -27,6 +28,8 @@ export function SettingsPage() {
       <ProfileSection />
       <RecommendationSettings />
       <AppearanceSection />
+      <DesktopOfflineSection />
+      <DesktopUpdateButton />
       <PasswordSection />
       <SessionsSection />
     </div>

apps/web/src/pages/admin/AnalysisErrorsDialog.test.tsx

@@ -0,0 +1,59 @@
+import { AuthSession } from '@pipu/core';
+import { createI18n } from '@pipu/i18n';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { cleanup, render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { I18nextProvider } from 'react-i18next';
+import { afterEach, expect, it, vi } from 'vitest';
+import { SessionProvider } from '../../app/session';
+import { AnalysisErrorsDialog } from './AnalysisErrorsDialog';
+
+afterEach(cleanup);
+
+async function fixture(mode: 'pages' | 'empty' | 'error' = 'pages') {
+  const cursors: (string | null)[] = [];
+  const session = new AuthSession({ baseUrl: 'http://localhost', clientType: 'web', fetch: async (input, init) => {
+    const req = new Request(input, init);
+    const cursor = new URL(req.url).searchParams.get('cursor');
+    cursors.push(cursor);
+    if (mode === 'error') return new Response(JSON.stringify({ code: 'server.error' }), { status: 500 });
+    return new Response(JSON.stringify({
+      items: mode === 'empty' ? [] : cursor ? [{ track_id: 'second', title: 'Без файла', source_id: null, source_name: null, rel_path: null, error: '' }]
+        : [{ track_id: 'first', title: 'Короткий трек', source_id: 'source', source_name: 'Base', rel_path: 'Исполнитель/Альбом/track.mp3', error: 'audio is shorter than 1 s' }],
+      next_cursor: mode === 'pages' && !cursor ? 'next-page' : null,
+    }), { headers: { 'Content-Type': 'application/json' } });
+  } });
+  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  const i18n = await createI18n('ru');
+  const close = vi.fn();
+  render(<I18nextProvider i18n={i18n}><SessionProvider session={session}><QueryClientProvider client={client}>
+    <AnalysisErrorsDialog onClose={close} />
+  </QueryClientProvider></SessionProvider></I18nextProvider>);
+  return { close, cursors, user: userEvent.setup() };
+}
+
+it('shows storage, path and error, loads the next page and closes with Escape', async () => {
+  const { user, cursors, close } = await fixture();
+  expect(screen.getByRole('dialog', { name: 'Ошибки аудиоанализа' })).toBeVisible();
+  expect(await screen.findByText('Исполнитель/Альбом/track.mp3')).toBeVisible();
+  expect(screen.getByText('Хранилище: Base')).toBeVisible();
+  expect(screen.getByText('audio is shorter than 1 s')).toBeVisible();
+  await user.click(screen.getByRole('button', { name: 'Показать ещё' }));
+  expect(await screen.findByText('В библиотеке больше нет файла этого трека.')).toBeVisible();
+  expect(screen.getByText('Короткий трек')).toBeVisible();
+  expect(cursors).toEqual([null, 'next-page']);
+  expect(screen.queryByRole('button', { name: 'Показать ещё' })).not.toBeInTheDocument();
+  await user.keyboard('{Escape}');
+  expect(close).toHaveBeenCalledOnce();
+});
+
+it('shows an empty state after failed jobs have been retried', async () => {
+  await fixture('empty');
+  expect(await screen.findByText('Неудавшихся задач анализа нет.')).toBeVisible();
+});
+
+it('shows a request failure without claiming the list is empty', async () => {
+  await fixture('error');
+  expect(await screen.findByRole('alert')).toBeVisible();
+  expect(screen.queryByText('Неудавшихся задач анализа нет.')).not.toBeInTheDocument();
+});

apps/web/src/pages/admin/AnalysisErrorsDialog.tsx

@@ -0,0 +1,40 @@
+import { unwrap } from '@pipu/core';
+import { useInfiniteQuery } from '@tanstack/react-query';
+import { useTranslation } from 'react-i18next';
+
+import { useSession } from '../../app/session';
+import { useErrorText } from '../../shared/lib/errors';
+import { Button, Dialog, FormError } from '../../shared/ui/ui';
+import s from './library.module.css';
+
+export function AnalysisErrorsDialog({ onClose }: { onClose: () => void }) {
+  const { t } = useTranslation(['admin', 'common']);
+  const session = useSession();
+  const errorText = useErrorText();
+  const errors = useInfiniteQuery({
+    queryKey: ['analysis-errors'],
+    initialPageParam: undefined as string | undefined,
+    queryFn: async ({ pageParam }) => unwrap(await session.client.GET('/api/v1/admin/library/analysis/errors', {
+      params: { query: { limit: 50, cursor: pageParam } },
+    })),
+    getNextPageParam: (page) => page.next_cursor ?? undefined,
+  });
+  const items = errors.data?.pages.flatMap((page) => page.items) ?? [];
+
+  return <Dialog title={t('library.analysis_errors_title')} onClose={onClose}
+    footer={<Button onClick={onClose}>{t('common:form.close')}</Button>}>
+    <p>{t('library.analysis_errors_hint')}</p>
+    {errors.isPending && <p role="status">{t('common:loading')}</p>}
+    <FormError>{errors.error ? errorText(errors.error) : null}</FormError>
+    {errors.isSuccess && items.length === 0 && <p>{t('library.analysis_errors_empty')}</p>}
+    {items.length > 0 && <ul className={s.analysisErrors}>
+      {items.map((item) => <li key={item.track_id}>
+        <strong>{item.title}</strong>
+        {item.source_name && <span className={s.scanSummary}>{t('library.analysis_error_source', { name: item.source_name })}</span>}
+        <code className={s.analysisPath}>{item.rel_path ?? t('library.analysis_error_no_file')}</code>
+        <span className={s.scanError}>{item.error || t('library.analysis_error_unknown')}</span>
+      </li>)}
+    </ul>}
+    {errors.hasNextPage && <Button busy={errors.isFetchingNextPage} onClick={() => void errors.fetchNextPage()}>{t('library.analysis_errors_more')}</Button>}
+  </Dialog>;
+}

apps/web/src/pages/admin/GeniusPanel.test.tsx

@@ -0,0 +1,67 @@
+import { AuthSession } from '@pipu/core';
+import { createI18n } from '@pipu/i18n';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { cleanup, render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { I18nextProvider } from 'react-i18next';
+import { afterEach, expect, it } from 'vitest';
+import { SessionProvider } from '../../app/session';
+import { GeniusPanel } from './GeniusPanel';
+
+afterEach(cleanup);
+
+const initial = {
+  configured: true, paused: false, running: true,
+  total: 100, pending: 80, matched: 17, lyrics: 15, annotations: 5, images: 17,
+  unmatched: 2, errors: 1, last_error: '', cooldown_until: '2000-01-01T00:00:00Z',
+};
+
+async function fixture(overrides: Partial<typeof initial> = {}) {
+  let data = { ...initial, ...overrides };
+  const actions: string[] = [];
+  const session = new AuthSession({ baseUrl: 'http://localhost', clientType: 'web', fetch: async (url, init) => {
+    const request = new Request(url, init);
+    if (request.method === 'POST') {
+      const { action } = await request.json() as { action: string };
+      actions.push(action);
+      data = { ...data, paused: action === 'pause' };
+    }
+    return new Response(JSON.stringify(data), { headers: { 'Content-Type': 'application/json' } });
+  } });
+  const client = new QueryClient({ defaultOptions: { queries: { retry: false, staleTime: Infinity } } });
+  client.setQueryData(['genius-stats'], data);
+  const i18n = await createI18n('ru');
+  render(<I18nextProvider i18n={i18n}><SessionProvider session={session}><QueryClientProvider client={client}>
+    <GeniusPanel />
+  </QueryClientProvider></SessionProvider></I18nextProvider>);
+  return { actions, user: userEvent.setup() };
+}
+
+it.each<[Partial<typeof initial>, string]>([
+  [{}, 'Получение данных из Genius…'],
+  [{ running: false }, 'Очередь ожидает обработки'],
+  [{ paused: true }, 'Обработка приостановлена'],
+  [{ cooldown_until: '2099-01-01T00:00:00Z' }, 'Ожидание после ограничения Genius'],
+  [{ running: false, pending: 0 }, 'Ожидание новых треков'],
+])('shows queue state and progress for %j', async (overrides, status) => {
+  await fixture(overrides);
+  expect(screen.getByRole('status')).toHaveTextContent(status);
+  const progress = screen.getByRole('progressbar', { name: 'Прогресс обработки Genius' });
+  expect(progress).toHaveAttribute('max', '100');
+  expect(progress).toHaveAttribute('value', String(100 - (overrides.pending ?? 80)));
+});
+
+it('pauses and resumes the existing queue without requesting a retry', async () => {
+  const { user, actions } = await fixture();
+  await user.click(screen.getByRole('button', { name: 'Приостановить обработку' }));
+  await user.click(await screen.findByRole('button', { name: 'Продолжить обработку' }));
+  expect(actions).toEqual(['pause', 'start']);
+  expect(screen.getByRole('progressbar')).toHaveAttribute('value', '20');
+});
+
+it('explains the retry scope and sends the retry action', async () => {
+  const { user, actions } = await fixture();
+  expect(screen.getByText(/Повтор добавит в очередь только/)).toBeVisible();
+  await user.click(screen.getByRole('button', { name: 'Добавить проблемные треки в очередь' }));
+  expect(actions).toEqual(['retry']);
+});

apps/web/src/pages/admin/GeniusPanel.tsx

@@ -8,7 +8,7 @@ import s from '../page.module.css';
 import g from '../genius.module.css';
 
 export function GeniusPanel() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const session = useSession();
   const queries = useQueryClient();
   const errorText = useErrorText();
@@ -24,16 +24,23 @@ export function GeniusPanel() {
   });
   const data = stats.data;
   const cooling = data && Date.parse(data.cooldown_until) > Date.now();
-  const state = !data ? t('genius.loading') : !data.configured ? t('genius.disabled') : data.paused ? t('genius.paused') : cooling ? t('genius.cooldown') : data.running ? t('genius.running') : t('genius.waiting');
+  const state = !data ? t('genius.loading') : !data.configured ? t('genius.disabled') : data.paused ? t('genius.paused') : cooling ? t('genius.cooldown') : data.running ? t('genius.running') : data.pending > 0 ? t('genius.queued') : t('genius.waiting');
+  const processed = data ? Math.max(0, data.total - data.pending) : 0;
+  const formatNumber = (value: number) => value.toLocaleString(i18n.language);
   return <section className={s.section} aria-label="Genius">
     <div className={s.head}><h2>Genius</h2><span role="status">{state}</span></div>
     <p className={s.subtitle}>{t('genius.description')}</p>
     <FormError>{stats.error ? errorText(stats.error) : control.error ? errorText(control.error) : null}</FormError>
     {data && <>
       {!data.configured && <p>{t('genius.configure')}</p>}
+      {data.total > 0 && <div className={g.progress}>
+        <span>{t('genius.progress', { processed: formatNumber(processed), total: formatNumber(data.total) })}</span>
+        <progress aria-label={t('genius.progress_label')} value={processed} max={data.total} />
+        <p className={s.subtitle}>{t('genius.progress_hint')}</p>
+      </div>}
       <dl className={g.stats}>
         {(['total', 'pending', 'matched', 'lyrics', 'annotations', 'images', 'unmatched', 'errors'] as const).map((key) =>
-          <div key={key}><dt>{t(`genius.${key}`)}</dt><dd>{data[key].toLocaleString()}</dd></div>)}
+          <div key={key}><dt>{t(`genius.${key}`)}</dt><dd>{formatNumber(data[key])}</dd></div>)}
       </dl>
       {data.last_error && <p role="alert">{t('genius.last_error')}: {data.last_error === 'http_401' ? t('genius.token_error') : data.last_error === 'http_403' ? t('genius.access_error') : data.last_error === 'http_429' ? t('genius.cooldown') : data.last_error === 'lyrics_unavailable' ? t('genius.no_lyrics') : t('genius.request_error')}</p>}
       {cooling && <p>{t('genius.resume_at')}: {new Date(data.cooldown_until).toLocaleString()}</p>}
@@ -41,6 +48,8 @@ export function GeniusPanel() {
         <Button disabled={!data.configured || control.isPending} onClick={() => control.mutate(data.paused ? 'start' : 'pause')}>{t(data.paused ? 'genius.start' : 'genius.pause')}</Button>
         <Button disabled={!data.configured || control.isPending || data.errors + data.unmatched === 0} onClick={() => control.mutate('retry')}>{t('genius.retry')}</Button>
       </div>
+      <p className={s.subtitle}>{t('genius.controls_hint')}</p>
+      <p className={s.subtitle}>{t('genius.retry_hint')}</p>
     </>}
   </section>;
 }

apps/web/src/pages/admin/LibraryPage.tsx

@@ -1,6 +1,6 @@
 import { unwrap } from '@pipu/core';
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
-import { useId } from 'react';
+import { useId, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 
 import { useSession, useUser } from '../../app/session';
@@ -10,6 +10,7 @@ import { Button, FormError } from '../../shared/ui/ui';
 import s from '../page.module.css';
 import l from './library.module.css';
 import { ScanLine, StatusBadge } from './ScanStatus';
+import { AnalysisErrorsDialog } from './AnalysisErrorsDialog';
 
 /** Состояние библиотеки: счётчики, хранилища и сканы (admin, moderator), ошибки чтения (admin). */
 export function LibraryPage() {
@@ -18,6 +19,7 @@ export function LibraryPage() {
   const user = useUser();
   const errorText = useErrorText();
   const admin = user.role === 'admin';
+  const [showAnalysisErrors, setShowAnalysisErrors] = useState(false);
 
   const status = useQuery({
     queryKey: ['library-status'],
@@ -27,6 +29,7 @@ export function LibraryPage() {
   const errors = useQuery({
     queryKey: ['library-errors'],
     enabled: admin,
+    refetchInterval: status.data?.sources.some((source) => source.scan?.running) ? 2000 : 15000,
     queryFn: async () => unwrap(await session.client.GET('/api/v1/admin/library/errors', { params: { query: { limit: 50 } } })),
   });
   const reindex = useMutation({
@@ -35,7 +38,10 @@ export function LibraryPage() {
   const queryClient = useQueryClient();
   const retry = useMutation({
     mutationFn: async () => unwrap(await session.client.POST('/api/v1/admin/library/analysis/retry')),
-    onSuccess: () => void queryClient.invalidateQueries({ queryKey: ['library-status'] }),
+    onSuccess: () => {
+      void queryClient.invalidateQueries({ queryKey: ['library-status'] });
+      void queryClient.invalidateQueries({ queryKey: ['analysis-errors'] });
+    },
   });
   const d = status.data;
   const tiles = d
@@ -89,13 +95,17 @@ export function LibraryPage() {
                 {d.analysis.top_error && <span className={l.errorDetail}>{d.analysis.top_error}</span>}
               </span>
               {admin && (
-                <Button variant="secondary" icon={refreshIcon} busy={retry.isPending} onClick={() => retry.mutate()}>
-                  {t('library.analysis_retry')}
-                </Button>
+                <div className={l.analysisActions}>
+                  <Button onClick={() => setShowAnalysisErrors(true)}>{t('library.analysis_show_errors')}</Button>
+                  <Button variant="secondary" icon={refreshIcon} busy={retry.isPending} onClick={() => retry.mutate()}>
+                    {t('library.analysis_retry')}
+                  </Button>
+                </div>
               )}
             </div>
           )}
           {d.analysis.analyzer_ver && <span className={l.scanSummary}>{t('library.analyzer', { ver: d.analysis.analyzer_ver })}</span>}
+          {showAnalysisErrors && <AnalysisErrorsDialog onClose={() => setShowAnalysisErrors(false)} />}
         </section>
       )}
       {d && (

apps/web/src/pages/admin/ScanStatus.test.tsx

@@ -0,0 +1,42 @@
+import type { components } from '@pipu/api-client';
+import { createI18n } from '@pipu/i18n';
+import { cleanup, render, screen } from '@testing-library/react';
+import { I18nextProvider } from 'react-i18next';
+import { afterEach, expect, it } from 'vitest';
+import { ScanLine } from './ScanStatus';
+
+afterEach(cleanup);
+const scan: components['schemas']['ScanProgress'] = {
+  running: true, full: false, started_at: '2026-10-22T12:00:00Z', finished_at: null,
+  found: 12, to_process: 0, processed: 0, added: 0, updated: 0, moved: 0, missing: 0, errors: 0, error: null,
+  phase: 'walking', walked_dirs: 4, current_dir: 'Artist/Album',
+};
+
+async function fixture(overrides: Partial<typeof scan> = {}) {
+  const i18n = await createI18n('ru');
+  render(<I18nextProvider i18n={i18n}><ScanLine scan={{ ...scan, ...overrides }} lastScanAt={null} /></I18nextProvider>);
+}
+
+it('shows changing folder and file counts during the walk without a misleading percentage', async () => {
+  await fixture();
+  expect(screen.getByText(/Проверено папок: 4 · найдено аудиофайлов: 12/)).toBeVisible();
+  expect(screen.getByText('Текущая папка: Artist/Album')).toBeVisible();
+  expect(screen.getByRole('progressbar')).not.toHaveAttribute('aria-valuenow');
+});
+
+it('shows a percentage only once file processing has a known total', async () => {
+  await fixture({ phase: 'processing', to_process: 12, processed: 3 });
+  expect(screen.getByRole('progressbar')).toHaveAttribute('aria-valuenow', '25');
+  expect(screen.queryByText(/Текущая папка/)).not.toBeInTheDocument();
+});
+
+it.each([['preparing', 'Сопоставление файлов с библиотекой…'], ['finalizing', 'Завершение сканирования…']] as const)('labels the %s stage', async (phase, label) => {
+  await fixture({ phase });
+  expect(screen.getByText(label)).toBeVisible();
+  expect(screen.getByRole('progressbar')).not.toHaveAttribute('aria-valuenow');
+});
+
+it('supports servers without the new progress fields', async () => {
+  await fixture({ phase: undefined, walked_dirs: undefined, current_dir: undefined, found: 0 });
+  expect(screen.getByText('Обход папок…')).toBeVisible();
+});

apps/web/src/pages/admin/ScanStatus.tsx

@@ -19,14 +19,22 @@ export function ScanLine({ scan, lastScanAt }: { scan: ScanProgress | null; last
   const { t, i18n } = useTranslation('admin');
   const id = useId();
   if (scan?.running) {
+    const phase = scan.phase ?? (scan.found === 0 ? 'walking' : scan.to_process > 0 ? 'processing' : 'preparing');
+    const determinate = phase === 'processing' && scan.to_process > 0;
     const pct = scan.to_process > 0 ? Math.round((scan.processed / scan.to_process) * 100) : 0;
+    const state = phase === 'walking'
+      ? scan.walked_dirs === undefined ? t('sources.scan_walking') : t('sources.scan_walk_progress', { dirs: scan.walked_dirs.toLocaleString(i18n.language), found: scan.found.toLocaleString(i18n.language) })
+      : phase === 'preparing' ? t('sources.scan_preparing')
+      : phase === 'finalizing' ? t('sources.scan_finalizing')
+      : t('sources.scanning', { processed: scan.processed, total: scan.to_process });
     return (
       <div className={s.scan}>
         <div className={s.scanText} id={id}>
-          {scan.found === 0 ? t('sources.scan_walking') : t('sources.scanning', { processed: scan.processed, total: scan.to_process })}
+          {state}
         </div>
-        <div className={s.bar} role="progressbar" aria-labelledby={id} aria-valuenow={pct} aria-valuemin={0} aria-valuemax={100}>
-          <span style={{ width: `${pct}%` }} />
+        {phase === 'walking' && scan.current_dir && <div className={s.scanPath} title={scan.current_dir}>{t('sources.scan_current_dir', { path: scan.current_dir })}</div>}
+        <div className={cx(s.bar, !determinate && s.indeterminate)} role="progressbar" aria-labelledby={id} aria-valuenow={determinate ? pct : undefined} aria-valuemin={0} aria-valuemax={100}>
+          <span style={determinate ? { width: `${pct}%` } : undefined} />
         </div>
       </div>
     );

apps/web/src/pages/admin/SourceDialog.test.tsx

@@ -0,0 +1,63 @@
+import type { components } from '@pipu/api-client';
+import { AuthSession } from '@pipu/core';
+import { createI18n } from '@pipu/i18n';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { cleanup, render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { I18nextProvider } from 'react-i18next';
+import { afterEach, expect, it, vi } from 'vitest';
+import { SessionProvider } from '../../app/session';
+import { mobileFixtures } from '../../test/mobileFixtures';
+import { SourceDialog } from './SourcesPage';
+
+afterEach(cleanup);
+type Source = components['schemas']['Source'];
+const base = (mobileFixtures['/api/v1/admin/sources'] as { items: Source[] }).items[0]!;
+
+async function fixture(source: Source | null = { ...base, excluded_dirs: ['Downloads_PumpEars'] }, reject = false) {
+  const bodies: Record<string, unknown>[] = [];
+  const session = new AuthSession({ baseUrl: 'http://localhost', clientType: 'web', fetch: async (input, init) => {
+    const req = new Request(input, init);
+    if (req.method === 'PATCH' || req.method === 'POST') {
+      const body = await req.json() as Record<string, unknown>;
+      bodies.push(body);
+      return new Response(JSON.stringify(reject
+        ? { code: 'validation.excluded_dirs_invalid', errors: [{ field: 'excluded_dirs', code: 'validation.excluded_dirs_invalid' }] }
+        : { ...base, ...body }), { status: reject ? 422 : 200, headers: { 'Content-Type': 'application/json' } });
+    }
+    return new Response(JSON.stringify({ path: '', dirs: [] }), { headers: { 'Content-Type': 'application/json' } });
+  } });
+  const i18n = await createI18n('ru');
+  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  const close = vi.fn();
+  render(<I18nextProvider i18n={i18n}><SessionProvider session={session}><QueryClientProvider client={client}>
+    <SourceDialog source={source} onClose={close} />
+  </QueryClientProvider></SessionProvider></I18nextProvider>);
+  return { bodies, close, user: userEvent.setup() };
+}
+
+it('loads and saves one excluded path per line', async () => {
+  const { bodies, close, user } = await fixture();
+  const input = screen.getByLabelText('Не сканировать папки');
+  expect(input).toHaveValue('Downloads_PumpEars');
+  await user.type(input, '\nArtist/Samples\n');
+  await user.click(screen.getByRole('button', { name: 'Сохранить' }));
+  await waitFor(() => expect(close).toHaveBeenCalledOnce());
+  expect(bodies[0]?.excluded_dirs).toEqual(['Downloads_PumpEars', 'Artist/Samples']);
+});
+
+it('clears the list explicitly so excluded folders can be scanned again', async () => {
+  const { bodies, close, user } = await fixture();
+  await user.clear(screen.getByLabelText('Не сканировать папки'));
+  await user.click(screen.getByRole('button', { name: 'Сохранить' }));
+  await waitFor(() => expect(close).toHaveBeenCalledOnce());
+  expect(bodies[0]?.excluded_dirs).toEqual([]);
+});
+
+it('keeps invalid paths in the editor and displays the server validation', async () => {
+  const { user, close } = await fixture({ ...base, excluded_dirs: ['../outside'] }, true);
+  await user.click(screen.getByRole('button', { name: 'Сохранить' }));
+  await waitFor(() => expect(screen.getByLabelText('Не сканировать папки')).toHaveAttribute('aria-invalid', 'true'));
+  expect(screen.getByLabelText('Не сканировать папки')).toHaveValue('../outside');
+  expect(close).not.toHaveBeenCalled();
+});

apps/web/src/pages/admin/SourcesPage.tsx

@@ -2,7 +2,7 @@ import type { components } from '@pipu/api-client';
 import { unwrap } from '@pipu/core';
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
 import { useNavigate } from '@tanstack/react-router';
-import { useState, type FormEvent } from 'react';
+import { useId, useState, type FormEvent } from 'react';
 import { useTranslation } from 'react-i18next';
 
 import { useSession, useUser } from '../../app/session';
@@ -120,6 +120,7 @@ function SourceCard({ source, onEdit }: { source: Source; onEdit: () => void })
           {source.accepts_uploads && <span className={l.typeBadge}>{t('write_template.badge')}</span>}
         </div>
         <span className={l.location}>{location(source)}</span>
+        {!!source.excluded_dirs?.length && <span className={s.note}>{t('sources.excluded_count', { count: source.excluded_dirs.length })}</span>}
         {source.status === 'error' && source.status_message && (
           <span className={l.message}>{source.status_message}</span>
         )}
@@ -185,7 +186,7 @@ function SourceCard({ source, onEdit }: { source: Source; onEdit: () => void })
 
 const INTERVALS = [0, 60, 360, 1440];
 
-function SourceDialog({ source, onClose }: { source: Source | null; onClose: () => void }) {
+export function SourceDialog({ source, onClose }: { source: Source | null; onClose: () => void }) {
   const { t } = useTranslation(['admin', 'common']);
   const session = useSession();
   const queryClient = useQueryClient();
@@ -199,12 +200,15 @@ function SourceDialog({ source, onClose }: { source: Source | null; onClose: ()
   const [options, setOptions] = useState(source?.nfs_options ?? 'nfsvers=4.1,soft,timeo=150,retrans=3');
   const [priority, setPriority] = useState<'tags_first' | 'path_first'>(source?.tag_priority ?? 'tags_first');
   const [interval, setIntervalMin] = useState(source?.scan_interval_minutes ?? 0);
+  const [excludedDirs, setExcludedDirs] = useState((source?.excluded_dirs ?? []).join('\n'));
+  const excludedDirsId = useId();
 
   const save = useMutation({
     mutationFn: async () => {
       const common = {
         name: name.trim(),
         tag_priority: priority,
+        excluded_dirs: excludedDirs.split(/\r?\n/).map((dir) => dir.trim()).filter(Boolean),
         ...(type === 'local'
           ? { local_path: localPath }
           : { nfs_server: server.trim(), nfs_export: exportPath.trim(), nfs_options: options.trim() }),
@@ -224,11 +228,14 @@ function SourceDialog({ source, onClose }: { source: Source | null; onClose: ()
     },
     onSuccess: async () => {
       await queryClient.invalidateQueries({ queryKey: ['sources'] });
+      for (const key of ['library-status', 'library-errors', 'analysis-errors']) {
+        void queryClient.invalidateQueries({ queryKey: [key] });
+      }
       onClose();
     },
   });
   const err = save.error;
-  const fields = ['name', 'local_path', 'nfs_server', 'nfs_export', 'nfs_options'];
+  const fields = ['name', 'local_path', 'nfs_server', 'nfs_export', 'nfs_options', 'excluded_dirs'];
   const general = err && !fields.some((f) => fieldError(err, f)) ? errorText(err) : null;
 
   const submit = (e: FormEvent) => {
@@ -297,6 +304,18 @@ function SourceDialog({ source, onClose }: { source: Source | null; onClose: ()
             />
           </>
         )}
+        <div className={l.field}>
+          <label htmlFor={excludedDirsId} className={l.label}>{t('sources.excluded_dirs')}</label>
+          <textarea id={excludedDirsId} className={l.excludedDirs} rows={5}
+            value={excludedDirs} onChange={(event) => setExcludedDirs(event.target.value)}
+            disabled={source?.scan?.running ?? false}
+            placeholder="Downloads_PumpEars"
+            aria-invalid={!!fieldError(err, 'excluded_dirs')}
+            aria-describedby={`${excludedDirsId}-hint`} />
+          <span id={`${excludedDirsId}-hint`} className={s.note}>
+            {fieldError(err, 'excluded_dirs') ?? t(source?.scan?.running ? 'sources.excluded_running' : 'sources.excluded_hint')}
+          </span>
+        </div>
         <div className={l.field}>
           <span className={l.label}>{t('sources.tag_priority')}</span>
           <Segmented

apps/web/src/pages/admin/UsersPage.tsx

@@ -140,6 +140,11 @@ export function UsersPage() {
         label: t(u.reviews_uploads ? 'users.revoke_review' : 'users.grant_review'),
         onSelect: () => patch.mutate({ id: u.id, body: { reviews_uploads: !u.reviews_uploads } }),
       });
+    if (me.role === 'admin' && u.role !== 'admin')
+      items.push({
+        label: t(u.manages_updates ? 'users.revoke_updates' : 'users.grant_updates'),
+        onSelect: () => patch.mutate({ id: u.id, body: { manages_updates: !u.manages_updates } }),
+      });
     if (can('delete'))
       items.push({ label: t('users.delete'), danger: true, onSelect: () => setConfirm({ kind: 'delete', user: u }) });
     return items;
@@ -214,6 +219,7 @@ export function UsersPage() {
                   </td>
                   <td data-label={t('users.col_role')}>
                     <span className={cx(s.badge, s[`role_${u.role}`])}>{t(`common:roles.${u.role}`)}</span>
+                    {u.manages_updates && <span className={cx(s.badge, s.role_moderator)}>{t('users.manage_updates')}</span>}
                     {u.reviews_uploads && <span className={cx(s.badge, s.role_moderator)}>{t('users.review_uploads')}</span>}
                   </td>
                   <td data-label={t('users.col_status')}>

apps/web/src/pages/admin/library.module.css

@@ -123,8 +123,14 @@
   align-items: center;
   justify-content: space-between;
   gap: 16px;
+  flex-wrap: wrap;
 }
 
+.analysisActions { display: flex; flex-wrap: wrap; gap: 8px; }
+.analysisErrors { display: grid; gap: 16px; list-style: none; margin: 16px 0; padding: 0; }
+.analysisErrors li { display: grid; gap: 6px; padding-bottom: 16px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
+.analysisPath { font-size: 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
+
 .errorDetail {
   display: block;
   margin-top: 4px;
@@ -146,6 +152,26 @@
   transition: width 0.4s;
 }
 
+.scanPath {
+  font-size: 12px;
+  color: var(--text3);
+  overflow-wrap: anywhere;
+}
+
+.indeterminate span {
+  width: 35%;
+  animation: scanActivity 1.5s ease-in-out infinite alternate;
+}
+
+@keyframes scanActivity {
+  from { transform: translateX(0); }
+  to { transform: translateX(185%); }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .indeterminate span { animation: none; }
+}
+
 .test {
   font-size: 13px;
 }
@@ -212,6 +238,20 @@
   gap: 6px;
 }
 
+.excludedDirs {
+  width: 100%;
+  box-sizing: border-box;
+  resize: vertical;
+  border: 1px solid var(--line2);
+  border-radius: var(--radius-md);
+  padding: 10px 12px;
+  background: var(--surface2);
+  color: var(--text);
+  font: 13px var(--font-mono);
+}
+.excludedDirs:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
+.excludedDirs:disabled { opacity: 0.6; }
+
 .tiles {
   display: grid;
   grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));

apps/web/src/pages/genius.module.css

@@ -2,6 +2,8 @@
 .stats dt { color: var(--text2); font-size: 13px; }
 .stats dd { margin: 6px 0 0; font-size: 25px; font-variant-numeric: tabular-nums; }
 .actions { display: flex; flex-wrap: wrap; gap: 12px; }
+.progress { display: grid; gap: 8px; font-variant-numeric: tabular-nums; }
+.progress progress { display: block; width: 100%; height: 8px; accent-color: var(--accent); }
 .lyrics { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.8; }
 .annotation { border-top: 1px solid var(--line); padding-top: 16px; overflow-wrap: anywhere; }
 .annotation summary { cursor: pointer; line-height: 1.6; }

apps/web/src/player/persistence.ts

@@ -1,5 +1,6 @@
 import { unwrap, type AuthSession, type PlayContext, type RepeatMode } from '@pipu/core';
 import type { PlayerState } from './types';
+import { offlineOwner } from '../features/desktop/offline';
 
 const LOCAL_KEY = 'pipu.player';
 /** Сохраняем не больше этого числа треков очереди (лимит сервера — 500). */
@@ -30,6 +31,7 @@ function deviceId(): string {
 }
 
 export class PlaybackPersistence {
+  private get localKey() { const owner = offlineOwner(this.session); return owner ? `${LOCAL_KEY}.${owner}` : LOCAL_KEY; }
   private readonly device = deviceId();
   lastServerSave = 0;
   constructor(private readonly session: AuthSession, private readonly getState: () => PlayerState) {}
@@ -50,7 +52,7 @@ export class PlaybackPersistence {
   saveLocal() {
     if (!this.getState().track) return;
     try {
-      localStorage.setItem(LOCAL_KEY, JSON.stringify(this.snapshot(this.getState())));
+      localStorage.setItem(this.localKey, JSON.stringify(this.snapshot(this.getState())));
     } catch {
       // недоступное хранилище не мешает воспроизведению
     }
@@ -91,7 +93,7 @@ export class PlaybackPersistence {
   async restore(): Promise<Saved | null> {
     let local: Saved | null = null;
     try {
-      const raw = localStorage.getItem(LOCAL_KEY);
+      const raw = localStorage.getItem(this.localKey);
       local = raw ? (JSON.parse(raw) as Saved) : null;
     } catch {
       local = null;

apps/web/src/player/player.ts

@@ -18,6 +18,7 @@ import { MediaControls } from './media';
 import type { PlayerState } from './types';
 import { AudioEngine } from './engine';
 import { PlaybackPersistence } from './persistence';
+import { DesktopOffline, desktopEventSink, offlineOwner } from '../features/desktop/offline';
 
 export type { PlayContext, Track };
 
@@ -34,6 +35,8 @@ const PRELOAD_BEFORE_MS = 20_000;
  * Media Session и сохранение «трек и момент» (локально и на сервере).
  */
 export class Player {
+  readonly offline: DesktopOffline | null;
+  private retryEvents: (() => Promise<void>) | null = null;
   private readonly engine: AudioEngine;
   private get audio() { return this.engine.audio; }
   private get overlap() { return this.engine.overlap; }
@@ -65,8 +68,16 @@ export class Player {
     audio?: HTMLAudioElement,
   ) {
     this.engine = new AudioEngine(audio);
+    const owner = offlineOwner(session);
+    this.offline = owner ? new DesktopOffline(owner, session) : null;
+    if (owner) {
+      const send = desktopEventSink(session, owner);
+      this.retryEvents = () => send([]);
+      this.sendEvents = send;
+    }
     this.events = new EventBuffer({
       send: async (events) => {
+        if (this.sendEvents) return this.sendEvents(events);
         unwrap(await this.session.client.POST('/api/v1/events', { body: { events } }));
       },
     });
@@ -82,9 +93,16 @@ export class Player {
 
   /** Запуск фоновой отправки событий (парный вызов — dispose). */
   start() {
+    this.offline?.activate();
     this.timers.push(setInterval(() => void this.events.flush(), FLUSH_EVERY_MS));
+    if (this.retryEvents) {
+      void this.retryEvents().catch(() => undefined);
+      this.timers.push(setInterval(() => void this.retryEvents?.().catch(() => undefined), FLUSH_EVERY_MS));
+    }
   }
 
+  private sendEvents: ((events: import('@pipu/core').PlayEvent[]) => Promise<void>) | null = null;
+
   // --- подписка (useSyncExternalStore) ---
 
   subscribe = (fn: () => void) => {
@@ -137,11 +155,20 @@ export class Player {
     this.finishAttempt('skip');
     this.leaveWave();
     const version = this.wavePolicy.version;
-    const res = unwrap(
-      await this.session.client.POST('/api/v1/wave/sessions', {
+    let res;
+    try {
+      res = unwrap(await this.session.client.POST('/api/v1/wave/sessions', {
         body: { activity, mood, ...(seed ? { seed: { type: seed.type, id: seed.id } } : {}) },
-      }),
-    );
+      }));
+    } catch (error) {
+      if (!this.offline) throw error;
+      await this.offline.ready;
+      if (!this.wavePolicy.isCurrent(version)) return;
+      const tracks = this.offline.tracks().filter((t) => t.reaction !== 'dislike');
+      if (!tracks.length) throw error;
+      this.playList(tracks.sort(() => Math.random() - 0.5), 0, { type: 'collection', id: 'offline' });
+      return;
+    }
     if (!this.wavePolicy.isCurrent(version)) return;
     const tracks = res.tracks.filter((t) => t.available && t.stream_url);
     if (!tracks.length) {
@@ -339,12 +366,20 @@ export class Player {
   private async load(autoplay: boolean, startMs = 0) {
     const track = this.queue.current;
     if (!track?.stream_url) return;
+    const version = this.restoreVersion;
+    if (this.offline) {
+      await this.offline.ready.catch(() => undefined);
+      if (this.queue.current !== track || version !== this.restoreVersion) return;
+    }
+    this.offline?.keep([track.id]);
+    const source = this.offline?.local(track).stream_url ?? track.stream_url;
     this.update({ loading: autoplay, error: null, positionMs: startMs, durationMs: track.duration_ms });
     // Keep the restored element's buffer when the user presses Play.
-    if (this.audio.getAttribute('src') !== track.stream_url) this.audio.src = track.stream_url;
+    if (this.audio.getAttribute('src') !== source) this.audio.src = source;
     if (this.audio.currentTime !== startMs / 1000) this.audio.currentTime = startMs / 1000;
     this.media.updateMediaMetadata(track);
     if (!autoplay) return;
+    void this.offline?.save(track).catch(() => undefined);
     this.applyLoudness();
     this.attempt = new PlayAttempt(track, startMs);
     this.preloaded = null;
@@ -425,7 +460,8 @@ export class Player {
     const next = this.state.queue[this.state.index + 1];
     if (!next?.stream_url || !next.available) return;
     this.fading = true;
-    this.overlap.src = next.stream_url;
+    this.offline?.keep([this.queue.current!.id, next.id]);
+    this.overlap.src = this.offline?.local(next).stream_url ?? next.stream_url;
     this.overlap.volume = 0;
     void this.overlap.play().catch(() => {
       this.fading = false;
@@ -458,7 +494,8 @@ export class Player {
       return;
     }
     this.syncQueue();
-    const src = next.stream_url;
+    const src = this.offline?.local(next).stream_url ?? next.stream_url;
+    this.offline?.keep([next.id]);
     if (!src) {
       this.fading = false;
       this.ignoreEnded = false;
@@ -471,6 +508,7 @@ export class Player {
     this.attempt = new PlayAttempt(next, Math.round(at * 1000));
     this.update({ track: next, loading: false, playing: true, positionMs: Math.round(at * 1000), durationMs: next.duration_ms });
     this.media.updateMediaMetadata(next);
+    void this.offline?.save(next).catch(() => undefined);
     void this.audio.play().finally(() => {
       this.fading = false;
       this.ignoreEnded = false;
@@ -560,7 +598,7 @@ export class Player {
     if (!cur || !next?.stream_url || this.preloaded === next.id) return;
     if (cur.duration_ms - ms > PRELOAD_BEFORE_MS) return;
     this.preloaded = next.id;
-    void fetch(next.stream_url, { headers: { Range: 'bytes=0-0' } }).catch(() => undefined);
+    void fetch(this.offline?.local(next).stream_url ?? next.stream_url, { headers: { Range: 'bytes=0-0' } }).catch(() => undefined);
   }
 
   // --- сохранение состояния ---
@@ -583,10 +621,18 @@ export class Player {
     const version = ++this.restoreVersion;
     const saved = await this.persistence.restore();
     if (version !== this.restoreVersion || !saved?.queue.length) return;
-    const res = unwrap(await this.session.client.POST('/api/v1/tracks/batch', { body: { ids: saved.queue } }));
+    let items: Track[];
+    try {
+      items = unwrap(await this.session.client.POST('/api/v1/tracks/batch', { body: { ids: saved.queue } })).items;
+    } catch (error) {
+      if (!this.offline) throw error;
+      await this.offline.ready;
+      const cached = new Map(this.offline.tracks().map((t) => [t.id, t]));
+      items = saved.queue.flatMap((id) => cached.get(id) ?? []);
+    }
     if (version !== this.restoreVersion) return;
     const wanted = saved.queue[saved.index];
-    const tracks = res.items.filter((t) => t.available && t.stream_url);
+    const tracks = items.filter((t) => t.available && t.stream_url);
     if (!tracks.length) return;
     const idx = Math.max(tracks.findIndex((t) => t.id === wanted), 0);
     this.context = saved.context;
@@ -608,6 +654,7 @@ export class Player {
     this.fading = false;
     this.finishAttempt('skip');
     this.engine.dispose();
+    this.offline?.dispose();
     this.persistence.dispose();
     for (const t of this.timers) clearInterval(t);
     this.timers = [];

apps/web/src/test/e2eBridge.ts

@@ -6,6 +6,7 @@ export function installE2EFetch() {
   const api = fakeApi([
     makeUser('admin', 'admin', { must_change_credentials: true }),
     makeUser('alice', 'user'),
+    makeUser('update-manager', 'user', { manages_updates: true }),
     makeUser('mobile-admin', 'admin', { reviews_uploads: true }),
     makeUser('moderator', 'moderator', { reviews_uploads: true }),
   ]);

apps/web/src/test/fakeApi.ts

@@ -79,12 +79,27 @@ export function fakeApi(initial: FakeUser[]) {
   const playlistOwners = new Map<string, string>();
   const playlists = new Map<string, components['schemas']['Playlist']>();
 
+  let managementSources = [{ id: 'origin', name: 'Текущий репозиторий', url: 'https://git.example.org/pipu/music.git' }];
+  let managementJob: components['schemas']['ServerJob'] | null = null;
+  let configRevision = 1;
+  let configPending = false;
+  const configValues: Record<string, string> = {};
+  const configEntries: components['schemas']['ServerConfigEntry'][] = [
+    { key: 'LOG_LEVEL', group: 'shared', type: 'string', secret: false, readonly: false, effective: 'info', env: 'info', local: null, default_value: 'info', source: 'env' },
+    { key: 'TRAIN_HOUR', group: 'recommender', type: 'integer', secret: false, readonly: false, effective: '3', env: null, local: null, default_value: '3', source: 'default' },
+    { key: 'GITEA_TOKEN', group: 'api', type: 'string', secret: true, readonly: false, effective: '••••••••', env: null, local: '••••••••', default_value: '', source: 'local' },
+  ];
+  const serverConfig = () => ({ revision: String(configRevision), restart_required: configPending, entries: configEntries.map((entry) => {
+    const local = configValues[entry.key] ?? entry.local;
+    return { ...entry, local, effective: entry.env ?? local ?? entry.default_value, source: entry.env !== null ? 'env' : local !== null ? 'local' : 'default' };
+  }) });
   const me = (u: FakeUser): Me => ({
     id: u.id,
     username: u.username,
     display_name: u.display_name,
     role: u.role,
     reviews_uploads: u.reviews_uploads,
+    manages_updates: u.role === 'admin' || !!u.manages_updates,
     locale: u.locale,
     ui_prefs: prefs.get(u.id) ?? {},
     must_change_password: u.must_change_password,
@@ -107,6 +122,25 @@ export function fakeApi(initial: FakeUser[]) {
     calls.push({ method: req.method, path, body });
     const route = `${req.method} ${path}`;
     const user = current ? users.get(current) : undefined;
+    if (path.startsWith('/api/v1/admin/server/')) {
+      if (!user) return problem(401, 'auth.unauthorized');
+      const configs = path.includes('/config');
+      if (configs ? user.role !== 'admin' : user.role !== 'admin' && !user.manages_updates) return problem(403, 'auth.forbidden');
+      if (route === 'GET /api/v1/admin/server/updates') return json({ sources: managementSources, versions: ['v1.10.0', 'v1.9.0', 'v2.0.0-rc.1'], current_version: '1.9.0', source_error: '', job: managementJob });
+      if (route === 'PUT /api/v1/admin/server/update-sources') { managementSources = body?.sources as typeof managementSources; return json({ sources: managementSources }); }
+      if (route === 'GET /api/v1/admin/server/config') return json(serverConfig());
+      if (route === 'PATCH /api/v1/admin/server/config') {
+        if (body?.revision !== String(configRevision)) return problem(409, 'management.config_conflict');
+        for (const [key, value] of Object.entries(body?.values as Record<string, string | null>)) {
+          if (value === null) delete configValues[key]; else configValues[key] = value;
+        }
+        configRevision++; configPending = true; return json(serverConfig());
+      }
+      if (route === 'POST /api/v1/admin/server/updates' || route === 'POST /api/v1/admin/server/config/apply') {
+        managementJob = { id: 'job-1', kind: configs ? 'config' : 'update', state: 'running', target: configs ? 'config.local' : body?.channel === 'version' ? String(body.version) : body?.channel === 'main' ? 'main' : 'v1.10.0', started_at: '2026-10-22T09:00:00Z', finished_at: '', log: '→ build and restart' };
+        return json(managementJob, 202);
+      }
+    }
 
     switch (route) {
       case 'GET /api/v1/server-info':
@@ -323,6 +357,10 @@ export function fakeApi(initial: FakeUser[]) {
           return problem(422, 'auth.username_taken', { errors: [{ field: 'username', code: 'auth.username_taken' }] });
         target.username = username;
       }
+      if (typeof body?.manages_updates === 'boolean') {
+        if (user.role !== 'admin') return problem(403, 'auth.forbidden');
+        target.manages_updates = body.manages_updates;
+      }
       if (typeof body?.reviews_uploads === 'boolean') {
         if (user.role !== 'admin') return problem(403, 'auth.forbidden');
         target.reviews_uploads = body.reviews_uploads;

apps/web/src/widgets/AppShell.tsx

@@ -37,6 +37,7 @@ import { Ambient } from './Ambient';
 import { PlayerBar } from './PlayerBar';
 import { SearchBox } from './SearchBox';
 import s from './AppShell.module.css';
+import { DesktopUpdateDialog, DesktopOfflineBanner } from '../features/desktop/DesktopFeatures';
 
 type NavPath =
   | '/'
@@ -47,8 +48,11 @@ type NavPath =
   | '/admin/uploads'
   | '/uploads/new'
   | '/uploads/mine'
+  | '/admin/updates'
+  | '/admin/config'
   | '/admin/settings'
   | '/collection/playlists'
+  | '/collection/downloads'
   | '/collection/history'
   | '/collection/likes'
   | '/collection/dislikes';
@@ -147,6 +151,7 @@ function NavSection({
 export function AppShell() {
   return useAuthState().status === 'signed_in' ? (
     <PlayerProvider>
+      <DesktopUpdateDialog />
       <Shell />
     </PlayerProvider>
   ) : null;
@@ -174,6 +179,7 @@ function Shell() {
         <NavLink to="/" label={t('nav.home')} icon={homeIcon} activeIcon={homeFillIcon} />
         <NavSection mobile={mobile} id="collection" title={t('nav.collection')}>
           <NavLink to="/collection/playlists" label={t('playlists.title')} icon={queueIcon} activeIcon={queueIcon} />
+          {desktop && <NavLink to="/collection/downloads" label={t('desktop.offline')} icon={downloadIcon} activeIcon={downloadIcon} />}
           <NavLink to="/collection/history" label={t('nav.history')} icon={historyIcon} activeIcon={historyFillIcon} />
           <NavLink to="/collection/likes" label={t('nav.likes')} icon={likeIcon} activeIcon={likeFillIcon} count={counts.likes} />
           <NavLink
@@ -193,6 +199,7 @@ function Shell() {
             badge={pending}
           />
         )}
+        {!staff && user.manages_updates && <NavLink to="/admin/updates" label={t('nav.server_updates')} icon={downloadIcon} activeIcon={downloadIcon} />}
         {staff && (
           <NavSection mobile={mobile} id="admin" title={t('nav.admin')} badge={reviews ? pending : undefined} defaultFolded>
             <NavLink to="/admin/users" label={t('nav.users')} icon={groupIcon} activeIcon={groupFillIcon} />
@@ -211,8 +218,10 @@ function Shell() {
                 badge={pending}
               />
             )}
+            {(user.role === 'admin' || user.manages_updates) && <NavLink to="/admin/updates" label={t('nav.server_updates')} icon={downloadIcon} activeIcon={downloadIcon} />}
             {user.role === 'admin' && (
               <>
+                <NavLink to="/admin/config" label={t('nav.server_config')} icon={tuneIcon} activeIcon={tuneFillIcon} />
                 <NavLink to="/admin/settings" label={t('nav.admin_settings')} icon={tuneIcon} activeIcon={tuneFillIcon} />
                 <NavLink to="/admin/audit" label={t('nav.audit')} icon={auditIcon} activeIcon={auditFillIcon} />
               </>
@@ -298,6 +307,7 @@ function ShellMain() {
   const key = useRouterState({ select: (st) => st.location.pathname });
   return (
     <main id="content" className={s.content} tabIndex={-1}>
+      <DesktopOfflineBanner />
       <div key={key} className={s.routeIn}>
         <Suspense fallback={<PageSkeleton />}>
           <Outlet />

deploy/apply-config.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(dirname "$0")"
+# Share a lock with manual deployments and config application.
+if [ ! -f .management.lock ]; then (umask 022; : > .management.lock); fi
+exec 9<.management.lock
+flock -n 9 || { echo 'Another deployment is running' >&2; exit 1; }
+touch config.local
+compose() { docker compose --env-file config.local --env-file .env "$@"; }
+# Validate before stopping any container.
+compose config --quiet
+compose up -d --force-recreate --remove-orphans
+echo '→ ждём готовности api'
+for _ in $(seq 1 90); do
+  if compose exec -T nginx wget -qO- http://127.0.0.1/readyz >/dev/null 2>&1; then
+    echo 'Конфигурация применена; API готов'
+    exit 0
+  fi
+  sleep 2
+done
+echo 'API не стал готов: проверьте docker compose logs api' >&2
+exit 1

deploy/compose.yaml

@@ -55,7 +55,7 @@ services:
       dockerfile: services/api/Dockerfile
       target: api
       args: *version
-    env_file: .env
+    env_file: [config.local, .env]
     environment: &db-env
       DATABASE_URL: postgres://pipu:${POSTGRES_PASSWORD:?заполните POSTGRES_PASSWORD в .env (sudo ./install.sh)}@postgres:5432/pipu?sslmode=disable
     volumes:
@@ -63,6 +63,7 @@ services:
       - *library-host-ro
       - ${PIPU_DATA:-/srv/pipu}/cache:/cache
       - ${PIPU_DATA:-/srv/pipu}/updates:/updates
+      - ${PIPU_DATA:-/srv/pipu}/management:/management
       - ${PIPU_DATA:-/srv/pipu}/uploads:/uploads
     depends_on:
       postgres: { condition: service_healthy }
@@ -112,6 +113,11 @@ services:
       REDIS_URL: ${REDIS_URL:-redis://redis:6379/0}
       INTERNAL_TOKEN: ${INTERNAL_TOKEN:?заполните INTERNAL_TOKEN в .env (sudo ./install.sh)}
       LOG_LEVEL: ${LOG_LEVEL:-info}
+      CONTEXTS_PATH: ${CONTEXTS_PATH:-}
+      TRAIN_HOUR: ${TRAIN_HOUR:-3}
+      LIBRARY_ROOT: /library
+      LIBRARY_HOST_ROOT: /library-host
+      FFMPEG_PATH: ${FFMPEG_PATH:-ffmpeg}
     depends_on:
       postgres: { condition: service_healthy }
 
@@ -124,6 +130,11 @@ services:
       <<: *db-env
       REDIS_URL: ${REDIS_URL:-redis://redis:6379/0}
       LOG_LEVEL: ${LOG_LEVEL:-info}
+      CONTEXTS_PATH: ${CONTEXTS_PATH:-}
+      TRAIN_HOUR: ${TRAIN_HOUR:-3}
+      LIBRARY_ROOT: /library
+      LIBRARY_HOST_ROOT: /library-host
+      FFMPEG_PATH: ${FFMPEG_PATH:-ffmpeg}
     volumes:
       - *library-ro
       - *library-host-ro

deploy/config.schema.json

@@ -0,0 +1,418 @@
+[
+  {
+    "key": "MANAGEMENT_DIR",
+    "group": "api",
+    "type": "string",
+    "default_value": "/management",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "HTTP_ADDR",
+    "group": "api",
+    "type": "string",
+    "default_value": ":8080",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "DATABASE_URL",
+    "group": "api",
+    "type": "string",
+    "default_value": "Compose: POSTGRES_PASSWORD → postgres:5432/pipu",
+    "secret": true,
+    "readonly": true
+  },
+  {
+    "key": "REDIS_URL",
+    "group": "shared",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "LOG_LEVEL",
+    "group": "shared",
+    "type": "string",
+    "default_value": "info",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "MIGRATE_ON_START",
+    "group": "api",
+    "type": "boolean",
+    "default_value": "true",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "SHUTDOWN_TIMEOUT",
+    "group": "api",
+    "type": "duration",
+    "default_value": "15s",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "SUPPORTED_LOCALES",
+    "group": "api",
+    "type": "string",
+    "default_value": "ru,en",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "MIN_ANDROID_VERSION_CODE",
+    "group": "api",
+    "type": "integer",
+    "default_value": "0",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "JWT_PRIVATE_KEY",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "JWT_PREVIOUS_KEYS",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "ACCESS_TOKEN_TTL",
+    "group": "api",
+    "type": "duration",
+    "default_value": "15m",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "COOKIE_SECURE",
+    "group": "api",
+    "type": "boolean",
+    "default_value": "true",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "BOOTSTRAP_ADMIN_USERNAME",
+    "group": "api",
+    "type": "string",
+    "default_value": "admin",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "BOOTSTRAP_ADMIN_PASSWORD",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "LIBRARY_ROOT",
+    "group": "api",
+    "type": "string",
+    "default_value": "/library",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "LIBRARY_HOST_ROOT",
+    "group": "api",
+    "type": "string",
+    "default_value": "/library-host",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "STORAGE_AGENT_URL",
+    "group": "api",
+    "type": "string",
+    "default_value": "http://storage-agent:8090",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "INTERNAL_TOKEN",
+    "group": "shared",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "FFPROBE_PATH",
+    "group": "api",
+    "type": "string",
+    "default_value": "ffprobe",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "FPCALC_PATH",
+    "group": "api",
+    "type": "string",
+    "default_value": "fpcalc",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "STREAM_SIGNING_KEY",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "CACHE_DIR",
+    "group": "api",
+    "type": "string",
+    "default_value": "/cache",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "FFMPEG_PATH",
+    "group": "shared",
+    "type": "string",
+    "default_value": "ffmpeg",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "X_ACCEL",
+    "group": "api",
+    "type": "boolean",
+    "default_value": "true",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "TRANSCODE_CONCURRENCY",
+    "group": "api",
+    "type": "integer",
+    "default_value": "0",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "TRANSCODE_CACHE_LIMIT_GB",
+    "group": "api",
+    "type": "integer",
+    "default_value": "50",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "RECOMMENDER_URL",
+    "group": "api",
+    "type": "string",
+    "default_value": "http://recommender:8000",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "GENIUS_ACCESS_TOKEN",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "GENIUS_REQUEST_INTERVAL",
+    "group": "api",
+    "type": "duration",
+    "default_value": "2s",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "MEILI_URL",
+    "group": "api",
+    "type": "string",
+    "default_value": "http://meilisearch:7700",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "MEILI_MASTER_KEY",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "GITEA_URL",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "GITEA_REPO",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "GITEA_TOKEN",
+    "group": "api",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": false
+  },
+  {
+    "key": "UPDATES_DIR",
+    "group": "api",
+    "type": "string",
+    "default_value": "/updates",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "UPLOADS_DIR",
+    "group": "api",
+    "type": "string",
+    "default_value": "/uploads",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "LIBRARY_RW_ROOT",
+    "group": "api",
+    "type": "string",
+    "default_value": "/library-rw",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "LIBRARY_HOST_RW_ROOT",
+    "group": "api",
+    "type": "string",
+    "default_value": "/library-host-rw",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "UPLOADS_ROOT",
+    "group": "api",
+    "type": "string",
+    "default_value": "/uploads",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "PIPU_FILE_UID",
+    "group": "api",
+    "type": "integer",
+    "default_value": "-1",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "PIPU_FILE_GID",
+    "group": "api",
+    "type": "integer",
+    "default_value": "-1",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "PIPU_VERSION",
+    "group": "deployment",
+    "type": "string",
+    "default_value": "dev",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "PIPU_DATA",
+    "group": "deployment",
+    "type": "string",
+    "default_value": "/srv/pipu",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "LIBRARY_HOST",
+    "group": "deployment",
+    "type": "string",
+    "default_value": "",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "COMPOSE_FILE",
+    "group": "deployment",
+    "type": "string",
+    "default_value": "compose.yaml:compose.tls.yaml",
+    "secret": false,
+    "readonly": true
+  },
+  {
+    "key": "DOMAIN",
+    "group": "deployment",
+    "type": "string",
+    "default_value": "music.example.com",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "ACME_EMAIL",
+    "group": "deployment",
+    "type": "string",
+    "default_value": "admin@example.com",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "HTTP_PORT",
+    "group": "deployment",
+    "type": "integer",
+    "default_value": "80",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "POSTGRES_PASSWORD",
+    "group": "deployment",
+    "type": "string",
+    "default_value": "",
+    "secret": true,
+    "readonly": true
+  },
+  {
+    "key": "CONTEXTS_PATH",
+    "group": "recommender",
+    "type": "string",
+    "default_value": "",
+    "secret": false,
+    "readonly": false
+  },
+  {
+    "key": "TRAIN_HOUR",
+    "group": "recommender",
+    "type": "integer",
+    "default_value": "3",
+    "secret": false,
+    "readonly": false
+  }
+]

deploy/install-management.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+# Called explicitly by install.sh. Also usable once on existing installations.
+set -euo pipefail
+cd "$(dirname "$0")"
+DEPLOY="$(pwd -P)"
+DATA="${PIPU_DATA:-$(sed -n 's/^PIPU_DATA=//p' .env)}"
+DATA="${DATA:-/srv/pipu}"
+command -v python3 >/dev/null || { echo 'Install python3 (>=3.10) first' >&2; exit 1; }
+python3 -c 'import sys; assert sys.version_info >= (3, 10), "Python >=3.10 required"'
+[ -d /etc/systemd/system ] || { echo 'systemd is required for server management' >&2; exit 1; }
+mkdir -p "$DATA/management" /var/lib/pipu-management /usr/local/lib/pipu
+chown 65532:65532 "$DATA/management"
+chmod 700 "$DATA/management" /var/lib/pipu-management
+# Copy outside the checkout: switching revisions must not replace a running worker.
+install -m 700 server-agent.py /usr/local/lib/pipu/server-agent.py
+touch config.local
+chmod 600 config.local
+if [ -n "${SUDO_USER:-}" ]; then chown "$SUDO_USER" config.local; fi
+# systemd quoted arguments escape backslashes, quotes and specifiers.
+quote_unit() { printf '%s' "$1" | sed 's/\\/\\\\/g; s/"/\\"/g; s/%/%%/g'; }
+DEPLOY_UNIT="$(quote_unit "$DEPLOY")"
+MAILBOX_UNIT="$(quote_unit "$DATA/management")"
+cat > /etc/systemd/system/pipu-management.service <<EOF
+[Unit]
+Description=Pipu Music server management agent
+After=docker.service
+Requires=docker.service
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/python3 /usr/local/lib/pipu/server-agent.py --deploy-dir "$DEPLOY_UNIT" --mailbox "$MAILBOX_UNIT" --state-dir /var/lib/pipu-management
+Restart=on-failure
+RestartSec=3
+UMask=0077
+KillMode=control-group
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl daemon-reload
+systemctl enable pipu-management.service
+systemctl restart pipu-management.service
+echo '→ управление сервером: pipu-management.service'

deploy/install.sh

@@ -118,4 +118,6 @@ if [ -n "$LIBRARY_HOST" ]; then
   fi
 fi
 
+bash ./install-management.sh
+
 echo "Готово. Сборка и запуск последнего релиза: ./update.sh"

deploy/server-agent.py

@@ -0,0 +1,400 @@
+#!/usr/bin/env python3
+"""Host-side management worker. No network listener or Docker socket in the API.
+
+Only fixed operations cross the shared mailbox. Private state stays outside it.
+Run with Python >= 3.10; installed by install-management.sh.
+"""
+import argparse
+import hashlib
+import json
+import os
+import re
+import subprocess
+import tempfile
+import threading
+import time
+import uuid
+from datetime import datetime, timezone
+from pathlib import Path
+from urllib.parse import urlsplit
+
+
+class ManagementError(Exception):
+    def __init__(self, code, status=400):
+        super().__init__(code)
+        self.code, self.status = code, status
+
+
+def atomic(path, value, mode=0o600, preserve_owner=False):
+    fd, name = tempfile.mkstemp(dir=path.parent, prefix=".management-")
+    try:
+        with os.fdopen(fd, "w", encoding="utf-8") as out:
+            os.chmod(name, mode)
+            if preserve_owner and path.exists() and hasattr(os, "chown"):
+                previous = path.stat()
+                os.chown(name, previous.st_uid, previous.st_gid)
+            out.write(value)
+            out.flush()
+            os.fsync(out.fileno())
+        os.replace(name, path)
+    finally:
+        if os.path.exists(name):
+            os.unlink(name)
+
+
+def read_env(path):
+    """Read literal dotenv values, including the quoted format we write.
+
+    Compose performs interpolation; this reader never executes dotenv contents.
+    """
+    values = {}
+    if not path.exists():
+        return values
+    for line in path.read_text(encoding="utf-8").splitlines():
+        match = re.match(r"^(?:export\s+)?([A-Z][A-Z0-9_]*)\s*=(.*)$", line.strip())
+        if not match:
+            continue
+        key, value = match.groups()
+        value = value.strip()
+        if value.startswith("'") and value.endswith("'"):
+            value = value[1:-1].replace("\\'", "'")
+        elif value.startswith('"') and value.endswith('"'):
+            try:
+                value = json.loads(value)
+            except ValueError:
+                value = value[1:-1]
+        else:
+            value = value.split(" #", 1)[0].strip()
+        values[key] = value
+    return values
+
+
+def validate_url(url):
+    if not isinstance(url, str) or len(url) > 2048 or re.search(r"[\s\x00-\x1f]", url):
+        raise ManagementError("management.source_invalid")
+    if re.fullmatch(r"git@[A-Za-z0-9.-]+:[A-Za-z0-9_./-]+", url):
+        return
+    parsed = urlsplit(url)
+    if (parsed.scheme not in ("https", "http", "ssh") or not parsed.hostname
+            or parsed.password or parsed.query or parsed.fragment
+            or (parsed.username and not (parsed.scheme == "ssh" and parsed.username == "git"))
+            or not parsed.path.strip("/")):
+        raise ManagementError("management.source_invalid")
+
+
+def version_key(tag):
+    match = re.fullmatch(r"v?(\d+)\.(\d+)\.(\d+)(?:-rc\.(\d+))?", tag)
+    if not match:
+        return None
+    major, minor, patch, rc = match.groups()
+    return int(major), int(minor), int(patch), 1 if rc is None else 0, int(rc or 0)
+
+
+def now():
+    return datetime.now(timezone.utc).isoformat()
+
+
+class Agent:
+    def __init__(self, deploy, mailbox, private):
+        self.deploy, self.mailbox, self.private = deploy, mailbox, private
+        self.lock = threading.Lock()
+        self.cache = {}
+        self.job = self.load("job.json", None)
+        # systemd KillMode=control-group stops descendants too. Never claim success
+        # after a reboot or interrupted deployment.
+        if self.job and self.job["state"] == "running":
+            self.job.update(state="failed", finished_at=now(), log="Agent interrupted; inspect deployment before retrying.")
+            self.save("job.json", self.job)
+
+    def load(self, name, default):
+        path = self.private / name
+        return json.loads(path.read_text(encoding="utf-8")) if path.exists() else default
+
+    def save(self, name, value):
+        atomic(self.private / name, json.dumps(value, ensure_ascii=False))
+
+    def git_environment(self):
+        return {"GIT_TERMINAL_PROMPT": "0", "GIT_SSH_COMMAND": "ssh -oBatchMode=yes",
+                "GIT_CONFIG_COUNT": "1", "GIT_CONFIG_KEY_0": "safe.directory", "GIT_CONFIG_VALUE_0": str(self.deploy.parent)}
+
+    def command(self, args, timeout=30, **kwargs):
+        return subprocess.run(args, cwd=self.deploy, timeout=timeout, check=True,
+                              stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True,
+                              env={**os.environ, **self.git_environment()}, **kwargs).stdout
+
+    def sources(self):
+        sources = self.load("sources.json", None)
+        if sources is None:
+            url = self.command(["git", "remote", "get-url", "origin"]).strip()
+            validate_url(url)
+            sources = [{"id": "origin", "name": "origin", "url": url}]
+            self.save("sources.json", sources)
+        return sources
+
+    def refs(self, url, fresh=False):
+        cached = self.cache.get(url)
+        if cached and not fresh and time.monotonic() - cached[0] < 60:
+            return cached[1]
+        output = self.command(["git", "-c", "protocol.file.allow=never", "-c", "protocol.ext.allow=never",
+                               "ls-remote", "--heads", "--tags", "--", url], timeout=20)
+        refs = dict(line.split()[::-1] for line in output.splitlines() if len(line.split()) == 2)
+        self.cache[url] = time.monotonic(), refs
+        return refs
+
+    def schema(self):
+        return json.loads((self.deploy / "config.schema.json").read_text(encoding="utf-8"))
+
+    def revision(self):
+        return hashlib.sha256((self.deploy / "config.local").read_bytes()).hexdigest()
+
+    def config(self):
+        env = read_env(self.deploy / ".env")
+        local = read_env(self.deploy / "config.local")
+        entries = []
+        for item in self.schema():
+            key = item["key"]
+            source = "env" if key in env else "local" if key in local else "default"
+            effective = env.get(key, local.get(key, item["default_value"]))
+            def display(value):
+                return "••••••••" if item["secret"] and value else value
+            entries.append({**item, "env": display(env.get(key)), "local": display(local.get(key)),
+                            "effective": display(effective), "source": source})
+        return {"entries": entries, "revision": self.revision(),
+                "restart_required": self.load("applied.json", "") != self.revision()}
+
+    def save_config(self, body):
+        if self.job and self.job["state"] == "running":
+            raise ManagementError("management.busy", 409)
+        if body.get("revision") != self.revision():
+            raise ManagementError("management.config_conflict", 409)
+        values = body.get("values")
+        if not isinstance(values, dict) or len(values) > 200:
+            raise ManagementError("management.config_invalid")
+        schema = {v["key"]: v for v in self.schema()}
+        local = read_env(self.deploy / "config.local")
+        for key, value in values.items():
+            item = schema.get(key)
+            if not item or item["readonly"]:
+                raise ManagementError("management.config_readonly")
+            if value is None:
+                local.pop(key, None)
+                continue
+            if not isinstance(value, str) or len(value) > 8192 or any(c in value for c in "\r\n\x00"):
+                raise ManagementError("management.config_invalid")
+            if item["type"] == "boolean" and value not in ("true", "false", "1", "0"):
+                raise ManagementError("management.config_invalid")
+            if item["type"] == "integer" and not re.fullmatch(r"-?\d+", value):
+                raise ManagementError("management.config_invalid")
+            if key == "LOG_LEVEL" and value not in ("debug", "info", "warn", "error"):
+                raise ManagementError("management.config_invalid")
+            if item["type"] == "integer" and key != "TRAIN_HOUR":
+                minimum = -1 if key in ("PIPU_FILE_UID", "PIPU_FILE_GID") else 0
+                if int(value) < minimum:
+                    raise ManagementError("management.config_invalid")
+            if key == "TRAIN_HOUR" and not -1 <= int(value) <= 23:
+                raise ManagementError("management.config_invalid")
+            if key.endswith("_PORT") and not 1 <= int(value) <= 65535:
+                raise ManagementError("management.config_invalid")
+            if item["type"] == "duration" and not re.fullmatch(r"(?:\d+(?:\.\d+)?(?:ns|us|µs|ms|s|m|h))+", value):
+                raise ManagementError("management.config_invalid")
+            local[key] = value
+        # Single quotes make dollar signs literal to Compose. Newlines are rejected.
+        content = "# Managed by Pipu. Environment and .env override these values.\n"
+        content += "".join(k + "='" + v.replace("'", "\\'") + "'\n" for k, v in sorted(local.items()))
+        path = self.deploy / "config.local"
+        previous = path.read_text(encoding="utf-8")
+        atomic(path, content, preserve_owner=True)
+        try:
+            self.command([*self.compose(), "config", "--quiet"])
+        except (subprocess.SubprocessError, OSError):
+            atomic(path, previous, preserve_owner=True)
+            raise ManagementError("management.config_invalid") from None
+        self.audit("config.save", list(values))
+        return self.config()
+
+    def compose(self):
+        return ["docker", "compose", "--env-file", "config.local", "--env-file", ".env"]
+
+    def audit(self, action, details):
+        # Deliberately no configuration values or credentials in this log.
+        with (self.private / "audit.jsonl").open("a", encoding="utf-8") as out:
+            out.write(json.dumps({"at": now(), "actor": getattr(self, "actor", ""), "action": action, "details": details}) + "\n")
+
+    def start_job(self, kind, target, command, extra_env=None):
+        if self.job and self.job["state"] == "running":
+            raise ManagementError("management.busy", 409)
+        job = {"id": str(uuid.uuid4()), "kind": kind, "state": "running", "target": target,
+               "started_at": now(), "finished_at": "", "log": ""}
+        self.job = job
+        self.save("job.json", job)
+        revision = self.revision()
+        self.audit(kind + ".start", {"id": job["id"], "target": target})
+        threading.Thread(target=self.run_job, args=(job, command, extra_env or {}, revision), daemon=True).start()
+        return dict(job)
+
+    def run_job(self, job, command, extra_env, revision):
+        # Let the API deliver the accepted job before recreating its container.
+        time.sleep(2)
+        # Capture full output privately, expose only a bounded redacted tail.
+        secrets = [v for k, v in {**read_env(self.deploy / "config.local"), **read_env(self.deploy / ".env")}.items()
+                   if re.search(r"TOKEN|PASSWORD|KEY|SECRET|DATABASE_URL|REDIS_URL", k) and len(v) >= 4]
+        def redact(text):
+            for value in secrets:
+                text = text.replace(value, "[redacted]")
+            return re.sub(r"(https?://)[^\s/@]+:[^\s/@]+@", r"\1[redacted]@", text)[-64000:]
+        logpath = self.private / (job["id"] + ".log")
+        result = 1
+        try:
+            with logpath.open("w", encoding="utf-8") as output:
+                process = subprocess.Popen(command, cwd=self.deploy, stdout=output, stderr=subprocess.STDOUT,
+                                           env={**os.environ, **self.git_environment(), **extra_env}, start_new_session=True)
+            deadline = time.monotonic() + 7200
+            while process.poll() is None:
+                if time.monotonic() > deadline:
+                    import signal
+                    os.killpg(process.pid, signal.SIGKILL)
+                    process.wait()
+                    break
+                with self.lock:
+                    with logpath.open("rb") as output:
+                        output.seek(max(0, logpath.stat().st_size - 128000))
+                        job["log"] = redact(output.read().decode("utf-8", errors="replace"))
+                    self.save("job.json", job)
+                time.sleep(1)
+            result = process.returncode
+            with logpath.open("rb") as output:
+                output.seek(max(0, logpath.stat().st_size - 128000))
+                job["log"] = redact(output.read().decode("utf-8", errors="replace"))
+            if result == 0:
+                self.save("applied.json", revision)
+        except (OSError, subprocess.SubprocessError):
+            result = 1
+            job["log"] += "\nCould not execute deployment command. Inspect journalctl -u pipu-management."
+        finally:
+            with self.lock:
+                job.update(state="succeeded" if result == 0 else "failed", finished_at=now())
+                self.save("job.json", job)
+
+    def handle(self, op, body):
+        if op == "config.get":
+            return self.config()
+        if op == "config.save":
+            return self.save_config(body)
+        if op == "config.apply":
+            return self.start_job("config", "config.local", ["bash", str(self.deploy / "apply-config.sh")])
+        if op == "sources.save":
+            if self.job and self.job["state"] == "running":
+                raise ManagementError("management.busy", 409)
+            sources = body.get("sources")
+            if not isinstance(sources, list) or not 1 <= len(sources) <= 20:
+                raise ManagementError("management.source_invalid")
+            ids = set()
+            for source in sources:
+                if (not isinstance(source, dict) or not re.fullmatch(r"[A-Za-z0-9_-]{1,64}", source.get("id", ""))
+                        or not isinstance(source.get("name"), str) or not 1 <= len(source["name"].strip()) <= 100
+                        or source["id"] in ids):
+                    raise ManagementError("management.source_invalid")
+                validate_url(source.get("url"))
+                ids.add(source["id"])
+            self.save("sources.json", sources)
+            self.audit("sources.save", list(ids))
+            return {"sources": sources}
+        sources = self.sources()
+        selected = next((s for s in sources if s["id"] == (body.get("source_id") or sources[0]["id"])), None)
+        if not selected:
+            raise ManagementError("management.source_invalid")
+        if op == "updates.get":
+            versions, error = [], ""
+            try:
+                refs = self.refs(selected["url"])
+                versions = sorted([r.removeprefix("refs/tags/") for r in refs if r.startswith("refs/tags/") and version_key(r[10:])], key=version_key, reverse=True)
+            except (subprocess.SubprocessError, OSError):
+                error = "management.source_unavailable"
+            return {"sources": sources, "versions": versions, "source_error": error,
+                    "current_version": read_env(self.deploy / ".env").get("PIPU_VERSION", ""), "job": self.job}
+        if op == "updates.start":
+            if self.job and self.job["state"] == "running":
+                raise ManagementError("management.busy", 409)
+            channel = body.get("channel")
+            if channel not in ("latest", "version", "main"):
+                raise ManagementError("management.target_invalid")
+            refs = self.refs(selected["url"], fresh=True)
+            if channel == "latest":
+                tags = [r[10:] for r in refs if r.startswith("refs/tags/") and version_key(r[10:]) and "-rc." not in r]
+                if not tags:
+                    raise ManagementError("management.no_releases")
+                target = max(tags, key=version_key)
+            else:
+                target = "main" if channel == "main" else body.get("version", "")
+            if target != "main" and not version_key(target):
+                raise ManagementError("management.target_invalid")
+            ref = "refs/heads/main" if target == "main" else "refs/tags/" + target
+            commit = refs.get(ref + "^{}", refs.get(ref))
+            if not commit or not re.fullmatch(r"[a-f0-9]{40,64}", commit):
+                raise ManagementError("management.target_invalid")
+            return self.start_job("update", target, ["bash", str(self.deploy / "update.sh"), target],
+                                  {"PIPU_UPDATE_SOURCE": selected["url"], "PIPU_UPDATE_COMMIT": commit,
+                                   "PIPU_UPDATE_REF": ref})
+        raise ManagementError("management.operation_invalid")
+
+    def tick(self):
+        atomic(self.mailbox / "heartbeat", str(time.time()), 0o644)
+        for path in sorted(self.mailbox.glob("*.request.json")):
+            if path.is_symlink() or not re.fullmatch(r"[a-f0-9-]{36}\.request\.json", path.name):
+                continue
+            response = self.mailbox / path.name.replace(".request.json", ".response.json")
+            if response.exists():
+                path.unlink(missing_ok=True)
+                continue
+            try:
+                if path.stat().st_size > 131072:
+                    raise ManagementError("management.request_invalid")
+                request = json.loads(path.read_text(encoding="utf-8"))
+                if time.time() - request["created_at"] > 45:
+                    raise ManagementError("management.request_expired", 409)
+                # Claim before executing: a worker crash must never replay a mutation.
+                path.unlink(missing_ok=True)
+                with self.lock:
+                    self.actor = request.get("actor", "")
+                    result = {"data": self.handle(request["operation"], request.get("body") or {})}
+            except ManagementError as error:
+                result = {"code": error.code, "status": error.status}
+            except (OSError, ValueError, KeyError, TypeError, subprocess.SubprocessError):
+                result = {"code": "management.agent_error", "status": 502}
+            atomic(response, json.dumps(result, ensure_ascii=False), 0o644)
+            path.unlink(missing_ok=True)
+        for path in self.mailbox.glob("*.response.json"):
+            if not path.is_symlink() and time.time() - path.stat().st_mtime > 120:
+                path.unlink(missing_ok=True)
+
+
+def main():
+    import fcntl  # Linux host only; tests import this module on Windows too.
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--deploy-dir", type=Path, required=True)
+    parser.add_argument("--mailbox", type=Path, required=True)
+    parser.add_argument("--state-dir", type=Path, required=True)
+    args = parser.parse_args()
+    args.state_dir.mkdir(parents=True, exist_ok=True, mode=0o700)
+    with (args.state_dir / "lock").open("w") as lock:
+        fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
+        agent = Agent(args.deploy_dir.resolve(), args.mailbox.resolve(), args.state_dir.resolve())
+        while True:
+            # Refresh the installed worker only after a successful deployment has
+            # persisted its final status. The running worker survives checkout/build.
+            with agent.lock:
+                installed = Path(__file__).resolve()
+                candidate = agent.deploy / "server-agent.py"
+                if (agent.job and agent.job["kind"] == "update" and agent.job["state"] == "succeeded"
+                        and installed == Path("/usr/local/lib/pipu/server-agent.py") and candidate.is_file()
+                        and candidate.read_bytes() != installed.read_bytes()):
+                    atomic(installed, candidate.read_text(encoding="utf-8"), 0o700)
+                    # The singleton lock is non-inheritable and released by exec.
+                    import sys
+                    os.execv(sys.executable, [sys.executable, str(installed), *sys.argv[1:]])
+            agent.tick()
+            time.sleep(0.2)
+
+
+if __name__ == "__main__":
+    main()

deploy/test_server_agent.py

@@ -0,0 +1,147 @@
+"""Host worker tests: python3 -m unittest discover -s deploy -p 'test_*.py'."""
+import importlib.util
+import json
+import subprocess
+import tempfile
+import unittest
+import shutil
+import sys
+from pathlib import Path
+from unittest.mock import patch
+
+spec = importlib.util.spec_from_file_location("server_agent", Path(__file__).with_name("server-agent.py"))
+agent_module = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(agent_module)
+Agent, ManagementError = agent_module.Agent, agent_module.ManagementError
+
+
+class AgentTests(unittest.TestCase):
+    def setUp(self):
+        self.temp = tempfile.TemporaryDirectory()
+        self.addCleanup(self.temp.cleanup)
+        self.root = Path(self.temp.name)
+        self.deploy, self.mailbox, self.private = [self.root / n for n in ("deploy", "mailbox", "private")]
+        for directory in (self.deploy, self.mailbox, self.private):
+            directory.mkdir()
+        self.schema = [
+            {"key": "LOG_LEVEL", "group": "api", "type": "string", "default_value": "info", "secret": False, "readonly": False},
+            {"key": "GITEA_TOKEN", "group": "api", "type": "string", "default_value": "", "secret": True, "readonly": False},
+            {"key": "TRAIN_HOUR", "group": "recommender", "type": "integer", "default_value": "3", "secret": False, "readonly": False},
+            {"key": "PIPU_DATA", "group": "deployment", "type": "string", "default_value": "/srv/pipu", "secret": False, "readonly": True},
+        ]
+        (self.deploy / "config.schema.json").write_text(json.dumps(self.schema), encoding="utf-8")
+        (self.deploy / "config.local").write_text("", encoding="utf-8")
+        (self.deploy / ".env").write_text("LOG_LEVEL=warn\nGITEA_TOKEN=top-secret\n", encoding="utf-8")
+        self.agent = Agent(self.deploy, self.mailbox, self.private)
+        self.agent.save("sources.json", [{"id": "origin", "name": "origin", "url": "https://example.org/o/pipu.git"}])
+
+    def test_env_priority_and_secrets_never_returned(self):
+        (self.deploy / "config.local").write_text("LOG_LEVEL=debug\nTRAIN_HOUR=5\n", encoding="utf-8")
+        config = self.agent.config()
+        entries = {v["key"]: v for v in config["entries"]}
+        self.assertEqual(("warn", "env", "debug"), tuple(entries["LOG_LEVEL"][k] for k in ("effective", "source", "local")))
+        self.assertEqual(("5", "local"), tuple(entries["TRAIN_HOUR"][k] for k in ("effective", "source")))
+        self.assertNotIn("top-secret", json.dumps(config))
+
+    def test_save_roundtrip_reset_and_conflict(self):
+        with patch.object(self.agent, "command", return_value=""):
+            result = self.agent.save_config({"revision": self.agent.revision(), "values": {"TRAIN_HOUR": "7", "GITEA_TOKEN": "a$'\\b#c"}})
+            self.assertEqual("a$'\\b#c", agent_module.read_env(self.deploy / "config.local")["GITEA_TOKEN"])
+            self.assertTrue(result["restart_required"])
+            self.assertNotIn("a$", json.dumps(result))
+            self.assertNotIn("a$", (self.private / "audit.jsonl").read_text())
+            with self.assertRaises(ManagementError) as raised:
+                self.agent.save_config({"revision": "stale", "values": {"TRAIN_HOUR": "8"}})
+            self.assertEqual(409, raised.exception.status)
+            self.agent.save_config({"revision": result["revision"], "values": {"TRAIN_HOUR": None}})
+            self.assertNotIn("TRAIN_HOUR", agent_module.read_env(self.deploy / "config.local"))
+
+    def test_invalid_values_and_compose_failure_preserve_original(self):
+        original = (self.deploy / "config.local").read_bytes()
+        for values in ({"TRAIN_HOUR": "24"}, {"TRAIN_HOUR": "bad"}, {"UNKNOWN": "x"}, {"PIPU_DATA": "/tmp"}, {"LOG_LEVEL": "x\nOTHER=y"}):
+            with self.assertRaises(ManagementError):
+                self.agent.save_config({"revision": self.agent.revision(), "values": values})
+            self.assertEqual(original, (self.deploy / "config.local").read_bytes())
+        with patch.object(self.agent, "command", side_effect=subprocess.CalledProcessError(1, "docker")):
+            with self.assertRaises(ManagementError):
+                self.agent.save_config({"revision": self.agent.revision(), "values": {"TRAIN_HOUR": "6"}})
+        self.assertEqual(original, (self.deploy / "config.local").read_bytes())
+
+    def test_source_validation_rejects_shell_local_and_credentials(self):
+        for url in ("/tmp/repo", "file:///tmp/repo", "ext::sh -c evil", "--upload-pack=evil", "https://user:secret@example.org/o/r", "https://secret@example.org/o/r", "https://example.org/o/r\narg", "ssh://root@example.org/o/r"):
+            with self.subTest(url=url), self.assertRaises(ManagementError):
+                agent_module.validate_url(url)
+        for url in ("https://example.org/o/r", "http://10.0.0.1:3000/o/r", "git@example.org:o/r.git", "ssh://git@example.org:2222/o/r.git"):
+            agent_module.validate_url(url)
+
+    def test_latest_is_semver_stable_and_pins_peeled_commit(self):
+        refs = {"refs/tags/v1.9.0": "a" * 40, "refs/tags/v1.10.0": "b" * 40, "refs/tags/v1.10.0^{}": "c" * 40, "refs/tags/v2.0.0-rc.1": "d" * 40}
+        with patch.object(self.agent, "refs", return_value=refs), patch.object(self.agent, "start_job", return_value={}) as start:
+            self.agent.handle("updates.start", {"source_id": "origin", "channel": "latest"})
+            self.assertEqual("v1.10.0", start.call_args.args[1])
+            self.assertEqual("c" * 40, start.call_args.args[3]["PIPU_UPDATE_COMMIT"])
+            self.assertEqual("refs/tags/v1.10.0", start.call_args.args[3]["PIPU_UPDATE_REF"])
+            with self.assertRaises(ManagementError):
+                self.agent.handle("updates.start", {"source_id": "origin", "channel": "version", "version": "--evil"})
+
+    def test_main_and_default_source(self):
+        with patch.object(self.agent, "refs", return_value={"refs/heads/main": "a" * 40}), patch.object(self.agent, "start_job", return_value={}) as start:
+            self.agent.handle("updates.start", {"source_id": "origin", "channel": "main"})
+            self.assertEqual("main", start.call_args.args[1])
+            result = self.agent.handle("updates.get", {"source_id": None})
+            self.assertEqual("origin", result["sources"][0]["id"])
+
+    def test_running_job_blocks_mutations_and_survives_restart_as_failure(self):
+        self.agent.job = {"state": "running"}
+        for operation, body in (("updates.start", {"channel": "main"}), ("config.apply", {}), ("sources.save", {}), ("config.save", {})):
+            with self.subTest(operation=operation), self.assertRaises(ManagementError) as raised:
+                self.agent.handle(operation, body)
+            self.assertEqual(409, raised.exception.status)
+        self.agent.save("job.json", {"state": "running", "id": "old"})
+        restored = Agent(self.deploy, self.mailbox, self.private)
+        self.assertEqual("failed", restored.job["state"])
+
+    def test_completed_job_redacts_secrets_and_marks_applied_revision(self):
+        job = {"id": "test", "kind": "config", "state": "running", "started_at": "", "finished_at": "", "target": "config.local", "log": ""}
+        self.agent.job = job
+        revision = self.agent.revision()
+        self.agent.run_job(job, [sys.executable, "-c", "print('top-secret')"], {}, revision)
+        self.assertEqual("succeeded", job["state"])
+        self.assertNotIn("top-secret", job["log"])
+        self.assertIn("[redacted]", job["log"])
+        self.assertFalse(self.agent.config()["restart_required"])
+        self.agent.run_job(job, [sys.executable, "-c", "raise SystemExit(2)"], {}, revision)
+        self.assertEqual("failed", job["state"])
+
+    def test_mailbox_discards_stale_request_and_never_executes_it(self):
+        path = self.mailbox / "00000000-0000-0000-0000-000000000001.request.json"
+        path.write_text(json.dumps({"operation": "config.apply", "created_at": 1}), encoding="utf-8")
+        with patch.object(self.agent, "handle") as handle:
+            self.agent.tick()
+            handle.assert_not_called()
+        response = json.loads(path.with_name(path.name.replace("request", "response")).read_text(encoding="utf-8"))
+        self.assertEqual("management.request_expired", response["code"])
+
+
+class ComposeTests(unittest.TestCase):
+    @unittest.skipUnless(shutil.which('docker'), 'Docker Compose CLI unavailable')
+    def test_real_compose_priorities_and_literal_secret_roundtrip(self):
+        with tempfile.TemporaryDirectory() as directory:
+            root = Path(directory)
+            (root / '.env').write_text('POSTGRES_PASSWORD=test-db\nINTERNAL_TOKEN=test-internal\nMEILI_MASTER_KEY=test-meili\nLOG_LEVEL=warn\n', encoding='utf-8')
+            secret = "literal$VALUE'with\\slash#hash"
+            (root / 'config.local').write_text("LOG_LEVEL='debug'\nTRAIN_HOUR='7'\nGITEA_TOKEN='" + secret.replace("'", "\\'") + "'\n", encoding='utf-8')
+            compose = Path(__file__).with_name('compose.yaml').resolve()
+            result = subprocess.run(['docker', 'compose', '--project-directory', str(root), '-f', str(compose), '--env-file', str(root / 'config.local'), '--env-file', str(root / '.env'), 'config', '--format', 'json'], capture_output=True, text=True, timeout=30)
+            self.assertEqual(0, result.returncode, 'Docker Compose configuration failed: ' + result.stderr)
+            services = json.loads(result.stdout)['services']
+            self.assertEqual('warn', services['api']['environment']['LOG_LEVEL'])
+            self.assertEqual('7', services['recommender']['environment']['TRAIN_HOUR'])
+            self.assertEqual('7', services['analyzer']['environment']['TRAIN_HOUR'])
+            # Canonical Compose output escapes dollars for reuse as YAML.
+            self.assertEqual(secret.replace('$', '$$'), services['api']['environment']['GITEA_TOKEN'])
+            self.assertNotIn('GITEA_TOKEN', services['recommender']['environment'])
+
+
+if __name__ == "__main__":
+    unittest.main()

deploy/update.sh

@@ -14,6 +14,15 @@ fi
 trap 'rm -f "$0"' EXIT
 cd "$PIPU_DEPLOY_DIR"
 
+# Share a lock with manual deployments and config application.
+if [ ! -f .management.lock ]; then (umask 022; : > .management.lock); fi
+exec 9<.management.lock
+flock -n 9 || { echo 'Another deployment is running' >&2; exit 1; }
+
+touch config.local
+chmod 600 config.local
+compose() { docker compose --env-file config.local --env-file .env "$@"; }
+
 [ -f .env ] || { echo "нет .env — сначала sudo ./install.sh" >&2; exit 1; }
 
 # Ключи подписи (токены — M1, ссылки на обложки и аудио — M2): создаются один раз,
@@ -69,7 +78,15 @@ if [ -n "$LIBRARY_HOST" ] && [ -z "$(ls -A "$LIBRARY_HOST" 2>/dev/null)" ] && [
 fi
 
 REF="${1:-}"
-git fetch --tags --prune --quiet origin
+if [ -n "${PIPU_UPDATE_SOURCE:-}" ]; then
+  [[ "${PIPU_UPDATE_COMMIT:-}" =~ ^[a-f0-9]{40,64}$ ]] || { echo 'Invalid commit' >&2; exit 1; }
+  [[ "${PIPU_UPDATE_REF:-}" =~ ^refs/(heads/main|tags/v?[0-9]+\.[0-9]+\.[0-9]+(-rc\.[0-9]+)?)$ ]] || { echo 'Invalid ref' >&2; exit 1; }
+  git -c protocol.file.allow=never -c protocol.ext.allow=never fetch --quiet -- "$PIPU_UPDATE_SOURCE" "$PIPU_UPDATE_REF"
+  FETCHED="$(git rev-parse 'FETCH_HEAD^{commit}')"
+  [ "$FETCHED" = "$PIPU_UPDATE_COMMIT" ] || { echo 'Source changed; select update again' >&2; exit 1; }
+else
+  git fetch --tags --prune --quiet origin
+fi
 
 if [ -z "$REF" ]; then
   REF="$(git tag -l 'v*' --sort=-v:refname | grep -v -- '-rc' | head -1)"
@@ -96,26 +113,40 @@ if [ -n "$cur_core" ] && [ -n "$tgt_core" ] && [ "$cur_core" != "$tgt_core" ] &&
 fi
 
 echo "→ переключаемся на $REF"
-if git show-ref --verify --quiet "refs/remotes/origin/$REF"; then
+# Refuse to overwrite local source changes.
+git diff --quiet && git diff --cached --quiet || { echo 'Repository has local changes' >&2; exit 1; }
+if [ -n "${PIPU_UPDATE_COMMIT:-}" ]; then
+  git checkout --quiet --detach "$PIPU_UPDATE_COMMIT"
+elif git show-ref --verify --quiet "refs/remotes/origin/$REF"; then
   git checkout --quiet "$REF"
   git merge --ff-only --quiet "origin/$REF"
 else
   git checkout --quiet --detach "$REF"
 fi
 
-VERSION="$(git describe --tags --always --dirty)"
+if [ -n "${PIPU_UPDATE_COMMIT:-}" ]; then
+  if [ "$REF" = main ]; then VERSION="main-$(git rev-parse --short HEAD)"; else VERSION="$REF"; fi
+else
+  VERSION="$(git describe --tags --always --dirty)"
+fi
 VERSION="${VERSION#v}"
 sed -i "s|^PIPU_VERSION=.*|PIPU_VERSION=$VERSION|" .env
 echo "→ версия $VERSION, сборка образов (первая сборка — 5–15 минут)"
 
-docker compose build --pull
-docker compose up -d --remove-orphans
+compose config --quiet
+if ! compose build --pull; then
+  # A build failure leaves running containers untouched; keep their version in .env.
+  sed -i "s|^PIPU_VERSION=.*|PIPU_VERSION=$CURRENT|" .env
+  echo 'Build failed; running containers were not replaced' >&2
+  exit 1
+fi
+compose up -d --remove-orphans
 docker image prune -f >/dev/null
 
 echo "→ ждём готовности api"
 for _ in $(seq 1 60); do
   # 127.0.0.1, а не localhost: в alpine localhost — сначала ::1, а nginx слушает только IPv4
-  if docker compose exec -T nginx wget -qO- http://127.0.0.1/readyz >/dev/null 2>&1; then
+  if compose exec -T nginx wget -qO- http://127.0.0.1/readyz >/dev/null 2>&1; then
     echo "pipu $VERSION запущен"
     exit 0
   fi

docs/README.md

@@ -24,6 +24,7 @@ Pipu Music — self-hosted музыкальный сервис (веб + Android
 | [i18n.md](i18n.md) | Локализация (ru / en, расширяемость) |
 | [install-guide.md](install-guide.md) | **Пошагово:** установка сервера на домен с HTTPS, подключение веба и Android |
 | [admin-guide.md](admin-guide.md) | **Администратору:** пользователи, хранилища, очередь, волна, обновления, диагностика |
+| [server-management.md](server-management.md) | Управление обновлениями и config.local из админки, установка агента |
 | [deployment.md](deployment.md) | Справочник по развёртыванию: сервисы, каталоги, переменные |
 
 ## Стек в одном абзаце

docs/admin-guide.md

@@ -133,3 +133,8 @@ APK, Linux (`.deb`) и Windows (NSIS) прикладываются к релиз
 | Сервис перезапускается по кругу | `docker compose logs <сервис>`; часто — закончилось место на диске |
 
 Остальное — [install-guide.md](install-guide.md#12-если-что-то-не-работает).
+
+
+## Управление обновлениями и конфигурацией
+
+Разделы **Обновления** и **Конфигурация** используют агент на хосте. Установка для существующего сервера, права, приоритет `.env` над `config.local` и диагностика описаны в [server-management.md](server-management.md).

docs/auth-and-roles.md

@@ -97,3 +97,6 @@
   делает **единственный** параллельный refresh (single-flight) и повторяет запросы.
 - Роутинг-гарды: `must_change_credentials` → `/setup/admin`; `must_change_password` → `/setup/password`;
   админские разделы — по `role`.
+
+
+Управление обновлениями сервера — право `manages_updates`: у admin всегда, другим его выдаёт и отзывает только admin. Оно даёт доступ к `/admin/updates`, управлению источниками и запуску обновления, но не к конфигурации сервера. `/admin/config` доступен только admin. Подробности: [server-management.md](server-management.md).

docs/desktop.md

@@ -15,3 +15,32 @@ pnpm --filter @pipu/desktop bundle
 На Windows получается NSIS-установщик (~3 МБ). На Linux в релиз идёт только `.deb` (~4 МБ): AppImage тащит WebKitGTK и раздувается до ~80 МБ. Зависимости пакета: WebKitGTK 4.1, AppIndicator, libsecret, GStreamer.
 
 Релиз по тегу собирает Linux `.deb` и Windows NSIS через `cargo-xwin` (`pipu-music-<версия>-windows-setup.exe`). Подпись Windows-установщика на Linux нет. Страница `/download` на сервере отдаёт те файлы, что есть в последнем релизе Gitea.
+
+## Офлайн и кеш
+
+Коллекция → **Скачанное и кеш** доступна без сервера, в том числе после перезапуска.
+Полностью загруженные прослушанные треки автоматически сохраняются в IndexedDB WebView;
+кеш недавних ограничен 500 МБ, при заполнении удаляются самые старые записи.
+Кнопка «Скачать» закрепляет трек: такие загрузки не вытесняются кешем и удаляются вручную.
+Обложки сохраняются рядом с аудио; подписанные ссылки не сохраняются.
+Хранилище и локальная очередь воспроизведения разделены по адресу сервера и пользователю.
+
+Настройки показывают размер хранилища и позволяют очистить недавние треки, сохранив ручные загрузки.
+Плеер предпочитает локальное аудио (включая crossfade); при запуске без сети восстанавливает
+сессию и сохранённую очередь без автозапуска. Если сервер волны недоступен, можно запустить
+перемешанные локальные треки без дизлайков. События прослушивания сохраняются локально
+и досылаются с исходными идентификаторами при восстановлении связи.
+
+## Обновления
+
+При запуске и возврате в окно (не чаще раза в 6 часов), а также вручную в настройках,
+нативный клиент читает `/api/v1/app/clients` через настроенный сервер Pipu.
+Выбирается сборка текущей ОС, версия сравнивается с установленной с учётом `-rc.N`.
+Диалог показывает пользовательские заметки без служебных блоков CI.
+
+«Скачать и установить» загружает сборку в каталог кеша приложения, показывает прогресс,
+проверяет размер и SHA-256 и только затем открывает установщик. Без контрольной суммы
+обновление не предлагается. Windows запускает EXE/MSI; Linux открывает DEB/RPM через
+системный обработчик пакетов; macOS открывает DMG. Установку подтверждает пользователь
+в системном интерфейсе, после неё требуется перезапуск приложения. На Linux необходим
+установленный обработчик пакетов для `xdg-open`; AppImage и `.app.tar` этим потоком не поддерживаются.

docs/library-and-storage.md

@@ -139,6 +139,33 @@ lower-case, `ё → е`, удаление пунктуации, схлопыва
 
 Ожидаемое время первого скана 11k файлов по NFS — 5–15 минут (bottleneck — чтение тегов).
 
+В редакторе хранилища поле **«Не сканировать папки»** задаёт до 100 исключений:
+по одному пути относительно корня хранилища в строке, например `Downloads_PumpEars`
+или `Artist/Samples`. Исключается вся ветка; соседняя `Downloads_PumpEars-copy`
+не затрагивается. Пути чувствительны к регистру, шаблоны и абсолютные пути не используются.
+Настройка хранится в `library_sources.excluded_dirs`; пустой список снимает исключения.
+Во время активного скана менять список нельзя.
+
+Исключённые ветки не обходятся; точечный скан такого пути отклоняется. Уже записанные
+файлы остаются в каталоге и не помечаются пропавшими. Сразу после сохранения исключений
+ошибки чтения и задачи аудиоанализа этих файлов перестают попадать в диагностику и повтор.
+Анализатор не забирает их в работу; если у трека есть другая разрешённая копия, использует её.
+После снятия исключений сохранённые задачи снова учитываются; неудавшиеся можно повторить.
+Файлы на диске не изменяются.
+
+Во время обхода админка показывает число посещённых папок (включая корень), найденных
+аудиофайлов и текущую папку относительно корня хранилища. До завершения обхода общее
+число файлов неизвестно, поэтому индикатор показывает активность без процента.
+Затем отображаются этапы сопоставления, обработки файлов с известным общим числом
+и завершения скана. API передаёт их в `ScanProgress.phase`, `walked_dirs`, `current_dir`.
+
+Ошибки в итогах скана относятся только к этому запуску. Общий счётчик и список
+ошибок чтения учитывают сохранённые ошибки только присутствующих файлов:
+после успешного скана пропавшие файлы исключаются из них, сохраняя запись на срок
+`MissingRetention`. В блоке аудиоанализа администратор может открыть «Показать файлы»:
+окно загружает ошибки анализа страницами через `GET /api/v1/admin/library/analysis/errors`
+и показывает трек, хранилище, относительный путь из текущего каталога и причину сбоя.
+
 ### Обложки
 
 Источники по приоритету: встроенная в файл → `cover.jpg|folder.jpg|front.*` в папке альбома → плейсхолдер,

docs/mobile.md

@@ -109,7 +109,7 @@
    кэширует ответ на 10 мин и APK на диске. Так:
    - мобильному приложению не нужен доступ к Gitea и токен (репозиторий может быть приватным);
    - версия приложения согласована с версией сервера (`min_supported` из `server-info`).
-2. Если `version_code` новее — диалог с changelog (Markdown из релиза), кнопки «Обновить» / «Позже».
+2. Если `version_code` новее — диалог с changelog (текст из Markdown релиза без служебных CI-блоков сборок), кнопки «Обновить» / «Позже».
    Если текущая версия ниже `min_supported` — обновление обязательно.
 3. Загрузка APK через `expo-file-system` в `cacheDirectory` с прогрессом; проверка **SHA-256** (значение из релиза).
    Хэш считается кусками по 1 МБ (`js-sha256`), APK целиком в память JS не читается. Загрузка идёт с `Bearer`,

docs/server-management.md

@@ -0,0 +1,127 @@
+# Управление сервером из веб-интерфейса
+
+В меню админки доступны **Обновления** (`/admin/updates`) и **Конфигурация**
+(`/admin/config`). Клиентские APK и desktop-сборки по-прежнему раздаются через
+существующий механизм `appupdate`; источники обновления сервера от него независимы.
+
+## Установка на существующий сервер
+
+После получения версии с управлением сервером выполните на Linux-хосте:
+
+```bash
+cd /opt/pipu-music/deploy
+sudo bash ./install-management.sh
+./update.sh main   # либо тег версии, содержащей эту возможность
+```
+
+Новая установка через `sudo ./install.sh` устанавливает агент автоматически.
+Нужны systemd, Python **3.10+**, Git, Bash, `flock` (util-linux) и Docker Compose
+**2.24+**. Compose должен поддерживать несколько `--env-file` и тег `!reset`
+из существующего TLS-overlay. Агент выполняется от root, чтобы запускать Compose
+и обращаться к данным развёртывания; API продолжает работать без root и без Docker socket.
+
+Скрипт создаёт `pipu-management.service`, копирует агент вне Git-checkout в
+`/usr/local/lib/pipu/server-agent.py`, создаёт `deploy/config.local` и общий каталог
+`${PIPU_DATA}/management` с владельцем UID 65532. Последний монтируется только в API.
+Приватные настройки источников, состояние, аудит и журналы лежат в
+`/var/lib/pipu-management`, доступном только root. Нужен доступ этого пользователя
+к origin; SSH-ключи и known_hosts для приватных репозиториев настройте на хосте.
+Пароли и токены в URL источников не принимаются.
+
+После успешного обновления агент автоматически заменяет свою установленную копию
+из нового checkout и перезапускается, сохранив итоговый статус. Для ручной установки
+нового кода можно повторно запустить `install-management.sh`.
+Во время выполняющейся операции не перезапускайте его: systemd остановит дочерние
+процессы. После прерывания/перезагрузки задача помечается ошибкой, а не успехом.
+
+## Права
+
+Администратор всегда может управлять обновлениями. В меню действий пользователя
+на странице **Пользователи** он может выдать и забрать право **Управление
+обновлениями** (`manages_updates`). Право действует независимо от роли и проверяется
+на сервере при каждом запросе. Оно позволяет изменять источники, видеть журнал
+и запускать обновление. Пользователь с этим правом получает ссылку на обновления,
+но не получает доступ к пользователям, конфигурации или остальным действиям админа.
+
+Выдавайте это право доверенным операторам: обновление запускает код выбранного
+совместимого репозитория на хосте. Только администраторы могут просматривать,
+сохранять и применять конфигурацию. Выдача/отзыв права записываются в `audit_log`;
+операции агента с UUID инициатора — в его приватный `audit.jsonl` без значений секретов.
+
+## Обновления
+
+При первом обращении автоматически добавляется текущий `git remote origin`.
+Можно создавать, редактировать и удалять источники; хотя бы один должен остаться.
+Поддерживаются совместимые Git-репозитории Pipu через HTTP(S) и SSH.
+
+* **Последний релиз** — значение по умолчанию: максимальный стабильный тег SemVer
+  `vMAJOR.MINOR.PATCH` (также допускается без `v`), без `-rc.N`.
+* **Выбрать версию** — конкретный релизный тег, включая release candidate.
+* **main** — текущий commit ветки main.
+
+Обновления устанавливаются только по нажатию кнопки и после подтверждения.
+Перед запуском агент повторно читает refs и фиксирует SHA; update.sh проверяет,
+что полученный commit совпадает. Выбранный источник не перезаписывает origin
+и не смешивает его теги с тегами другого репозитория. Git checkout с локальными
+изменениями отклоняется. Защита update.sh от downgrade сохраняется: откат
+выполняется вручную с `PIPU_ALLOW_DOWNGRADE=1` после проверки совместимости БД.
+
+Выполнение, ограниченный хвост журнала и итоговый статус доступны на странице.
+Можно закрыть браузер или переждать перезапуск API: работа продолжается на хосте.
+Полные логи остаются приватными; для интерфейса известные секреты маскируются.
+Одновременно агент допускает только одну операцию обновления/применения.
+Резервная копия и откат схемы БД автоматически не выполняются.
+
+## Конфигурация
+
+Реестр поддерживаемых параметров находится в `deploy/config.schema.json`:
+API, общие параметры сервисов, рекомендатель и развёртывание. Добавляя параметр
+в конфигурацию сервиса, обновите реестр; для рекомендателя/агента хранилища также
+проверьте передачу через Compose. Пути томов, сгенерированный DATABASE_URL и
+некоторые служебные параметры показаны для просмотра и меняются на хосте.
+Страница не является произвольным редактором nginx/Caddy/YAML-файлов.
+
+Приоритет при запуске через скрипты:
+
+1. Явные переменные окружения Compose и значения из `deploy/.env`.
+2. `deploy/config.local`.
+3. Встроенные значения по умолчанию.
+
+Для интерполяции Compose скрипты передают `--env-file config.local --env-file .env`.
+У API порядок `env_file: [config.local, .env]`; рекомендатель и storage-agent получают
+только необходимые им переменные через `environment`. При ручном запуске Compose
+сохраняйте эти флаги, иначе параметры интерполяции из config.local не подхватятся.
+Страница показывает ожидаемое значение после применения, а не утверждает, что
+работающий процесс уже перечитал сохранённый файл. Окружение shell запуска Compose
+тоже может перекрывать интерполяцию; для агента используется окружение systemd.
+
+В интерфейсе видны локальное значение, значение из `.env` и источник приоритета.
+Если ключ уже есть в `.env`, изменение его в config.local сохраняется, но не
+перекрывает `.env` — интерфейс прямо сообщает об этом. Чтобы управлять таким ключом
+через страницу, удалите его строку из `.env` на хосте. Секреты не возвращаются в API
+открытым текстом: поле без изменений сохраняет прежний секрет, ввод заменяет,
+**Сбросить локальное** удаляет только значение из config.local.
+
+Сохранение атомарно, с правами 0600 и проверкой ревизии: устаревшая форма не затрёт
+правки другого администратора. Перед сохранением проверяются типы и Compose;
+при ошибке прежний файл восстанавливается. Произвольные ключи, переводы строк
+и изменение служебных параметров отклоняются. Сохраняемые значения трактуются
+буквально: подстановки shell не выполняются.
+
+Кнопка **Применить и перезапустить** отдельно подтверждает пересоздание контейнеров.
+Агент запускает `apply-config.sh`, ждёт `/readyz` и сохраняет результат. Если сервисы
+не стали готовы, состояние — ошибка; исправьте config.local или восстановите его
+на хосте. Автоматического отката конфигурации после неудачного применения нет.
+
+Диагностика:
+
+```bash
+sudo systemctl status pipu-management.service
+sudo journalctl -u pipu-management.service -n 100
+cd /opt/pipu-music/deploy
+docker compose --env-file config.local --env-file .env logs api
+```
+
+Проверки разработки: `python3 -m unittest discover -s deploy -p 'test_*.py'`,
+`go test ./internal/auth ./internal/management` из `services/api`, а также
+`pnpm --filter @pipu/web test:e2e e2e/server-management.spec.ts`.

packages/api-client/src/generated/schema.ts

@@ -4,6 +4,70 @@
  */
 
 export interface paths {
+    "/api/v1/admin/server/updates": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get: operations["getServerUpdates"];
+        put?: never;
+        post: operations["startServerUpdate"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/admin/server/update-sources": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get?: never;
+        put: operations["saveServerUpdateSources"];
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/admin/server/config": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get: operations["getServerConfig"];
+        put?: never;
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch: operations["saveServerConfig"];
+        trace?: never;
+    };
+    "/api/v1/admin/server/config/apply": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get?: never;
+        put?: never;
+        post: operations["applyServerConfig"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
     "/api/v1/admin/genius": {
         parameters: {
             query?: never;
@@ -860,6 +924,23 @@ export interface paths {
         patch?: never;
         trace?: never;
     };
+    "/api/v1/admin/library/analysis/errors": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        /** Неудавшиеся задачи аудиоанализа с путями файлов (admin) */
+        get: operations["listAnalysisErrors"];
+        put?: never;
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
     "/api/v1/admin/library/host-dirs": {
         parameters: {
             query?: never;
@@ -1482,6 +1563,62 @@ export interface paths {
 export type webhooks = Record<string, never>;
 export interface components {
     schemas: {
+        ServerSource: {
+            id: string;
+            name: string;
+            url: string;
+        };
+        ServerSources: {
+            sources: components["schemas"]["ServerSource"][];
+        };
+        ServerJob: {
+            id: string;
+            /** @enum {string} */
+            kind: "update" | "config";
+            /** @enum {string} */
+            state: "running" | "succeeded" | "failed";
+            started_at: string;
+            finished_at: string;
+            target: string;
+            log: string;
+        };
+        ServerUpdates: {
+            sources: components["schemas"]["ServerSource"][];
+            versions: string[];
+            current_version: string;
+            source_error: string;
+            job: components["schemas"]["ServerJob"] | null;
+        };
+        ServerUpdateRequest: {
+            source_id: string;
+            /** @enum {string} */
+            channel: "latest" | "version" | "main";
+            version?: string;
+        };
+        ServerConfigEntry: {
+            key: string;
+            group: string;
+            type: string;
+            secret: boolean;
+            readonly: boolean;
+            effective: string;
+            env: string | null;
+            local: string | null;
+            default_value: string;
+            /** @enum {string} */
+            source: "env" | "local" | "default";
+        };
+        ServerConfig: {
+            revision: string;
+            restart_required: boolean;
+            entries: components["schemas"]["ServerConfigEntry"][];
+        };
+        ServerConfigPatch: {
+            revision: string;
+            values: {
+                [key: string]: string | null;
+            };
+        };
         PlaylistShare: {
             /** Format: uuid */
             share_id: string;
@@ -1842,6 +1979,8 @@ export interface components {
             username: string;
             display_name: string | null;
             role: components["schemas"]["Role"];
+            /** @description Управление обновлениями сервера. У admin всегда; другим выдаёт только admin */
+            manages_updates?: boolean;
             /** @description Может рассматривать очередь на добавление. Не следует из роли и может быть у нескольких людей сразу */
             reviews_uploads: boolean;
             locale: string;
@@ -1871,6 +2010,8 @@ export interface components {
             username: string;
             display_name: string | null;
             role: components["schemas"]["Role"];
+            /** @description Управление обновлениями сервера. У admin всегда; другим выдаёт только admin */
+            manages_updates?: boolean;
             /** @description Может рассматривать очередь на добавление. Не следует из роли и может быть у нескольких людей сразу */
             reviews_uploads: boolean;
             locale: string;
@@ -1890,6 +2031,8 @@ export interface components {
             username: string;
             display_name?: string;
             role: components["schemas"]["Role"];
+            /** @description Управление обновлениями сервера. У admin всегда; другим выдаёт только admin */
+            manages_updates?: boolean;
             /** @description Сразу выдать аудит загрузок. Может задать только админ */
             reviews_uploads?: boolean;
         };
@@ -1905,6 +2048,8 @@ export interface components {
             display_name?: string;
             role?: components["schemas"]["Role"];
             is_blocked?: boolean;
+            /** @description Управление обновлениями сервера. У admin всегда; другим выдаёт только admin */
+            manages_updates?: boolean;
             /** @description Выдать или забрать аудит загрузок. Может менять только админ, в том числе у себя */
             reviews_uploads?: boolean;
         };
@@ -1943,6 +2088,7 @@ export interface components {
         /** @enum {string} */
         TagPriority: "tags_first" | "path_first";
         Source: {
+            excluded_dirs?: components["schemas"]["ExcludedDirs"];
             /** Format: uuid */
             id: string;
             name: string;
@@ -1971,6 +2117,7 @@ export interface components {
             items: components["schemas"]["Source"][];
         };
         SourceInput: {
+            excluded_dirs?: components["schemas"]["ExcludedDirs"];
             name: string;
             type: components["schemas"]["SourceType"];
             nfs_server?: string;
@@ -1983,6 +2130,7 @@ export interface components {
             write_template?: string;
         };
         SourcePatch: {
+            excluded_dirs?: components["schemas"]["ExcludedDirs"];
             name?: string;
             nfs_server?: string;
             nfs_export?: string;
@@ -2001,6 +2149,8 @@ export interface components {
              */
             write_template?: string;
         };
+        /** @description Literal folder paths relative to the storage root, including all descendants. Case sensitive; no glob matching. Empty list clears exclusions. Existing library records are retained, but their scan and analysis are skipped. Changes require no running scan. */
+        ExcludedDirs: string[];
         SourceTestResult: {
             ok: boolean;
             message: string;
@@ -2078,6 +2228,15 @@ export interface components {
             full?: boolean;
         };
         ScanProgress: {
+            /**
+             * @description Current scan stage; progress percentage is available only during processing.
+             * @enum {string}
+             */
+            phase?: "walking" | "preparing" | "processing" | "finalizing";
+            /** @description Directories visited so far, including the source root. */
+            walked_dirs?: number;
+            /** @description Current directory relative to the source root, using forward slashes. */
+            current_dir?: string;
             running: boolean;
             full: boolean;
             /** Format: date-time */
@@ -2127,6 +2286,21 @@ export interface components {
             items: components["schemas"]["LibraryError"][];
             next_cursor: string | null;
         };
+        AnalysisError: {
+            /** Format: uuid */
+            track_id: string;
+            title: string;
+            /** Format: uuid */
+            source_id: string | null;
+            source_name: string | null;
+            /** @description Path relative to the source root; primary file if available, otherwise a known file of this track. */
+            rel_path: string | null;
+            error: string;
+        };
+        AnalysisErrorPage: {
+            items: components["schemas"]["AnalysisError"][];
+            next_cursor: string | null;
+        };
         HostDirList: {
             path: string;
             dirs: string[];
@@ -2517,6 +2691,146 @@ export interface components {
 }
 export type $defs = Record<string, never>;
 export interface operations {
+    getServerUpdates: {
+        parameters: {
+            query?: {
+                source_id?: string;
+            };
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description Server management result */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ServerUpdates"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
+    startServerUpdate: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["ServerUpdateRequest"];
+            };
+        };
+        responses: {
+            /** @description Server management result */
+            202: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ServerJob"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
+    saveServerUpdateSources: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["ServerSources"];
+            };
+        };
+        responses: {
+            /** @description Server management result */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ServerSources"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
+    getServerConfig: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description Server management result */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ServerConfig"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
+    saveServerConfig: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["ServerConfigPatch"];
+            };
+        };
+        responses: {
+            /** @description Server management result */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ServerConfig"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
+    applyServerConfig: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description Server management result */
+            202: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ServerJob"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
     getGeniusStats: {
         parameters: {
             query?: never;
@@ -3760,6 +4074,31 @@ export interface operations {
             default: components["responses"]["Problem"];
         };
     };
+    listAnalysisErrors: {
+        parameters: {
+            query?: {
+                limit?: components["parameters"]["Limit"];
+                /** @description Непрозрачный курсор из `next_cursor` предыдущей страницы */
+                cursor?: components["parameters"]["Cursor"];
+            };
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description Страница ошибок аудиоанализа, упорядоченная по ID трека */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["AnalysisErrorPage"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
     listHostDirs: {
         parameters: {
             query?: {

packages/core/src/index.ts

@@ -29,3 +29,4 @@ export { initialWaveState, mix, rgb, rgba, step, WAVE_COLORS, wavePalette, waveS
 export { WaveCoordinator, EARLY_SKIP_MS, WAVE_REFILL_AT, type WaveInfo, type WaveOutcome, type WaveFeedback, type WaveGateway } from './wave';
 
 export { AGE_GROUPS, GENDERS } from './onboarding';
+export { releaseNotesText } from './releases';

packages/core/src/releases.test.ts

@@ -0,0 +1,12 @@
+import { describe, expect, it } from 'vitest';
+import { releaseNotesText } from './releases';
+
+describe('release notes', () => {
+  it('removes build reports from all platforms, preserving real changes', () => {
+    expect(releaseNotesText('<!-- android-status -->\n> APK `file.apk` SHA-256: abc\n<!-- /android-status -->\n\n<!-- desktop-linux-status -->\n> package.deb\n<!-- /desktop-linux-status -->\n\n## Changes\n- **Offline** [playback](https://example.com)\n- Fix `player`')).toBe('Changes\n• Offline playback\n• Fix player');
+  });
+  it('hides comments and handles releases containing only build reports', () => {
+    expect(releaseNotesText('<!-- android-status -->\n> build\n<!-- /android-status -->')).toBe('');
+    expect(releaseNotesText('<!-- internal -->\n> Hello\n\n\nWorld')).toBe('Hello\n\nWorld');
+  });
+});

packages/core/src/releases.ts

@@ -0,0 +1,16 @@
+/** Release bodies also contain CI build reports; these are not user-facing notes. */
+export function releaseNotesText(markdown: string): string {
+  return markdown
+    .replace(/<!--\s*([\w-]+-status)\s*-->[\s\S]*?<!--\s*\/\1\s*-->/gi, '')
+    .replace(/<!--[\s\S]*?-->/g, '')
+    .replace(/^\s*```[^\n]*\n[\s\S]*?^\s*```\s*$/gm, '')
+    .replace(/^\s{0,3}#{1,6}\s+/gm, '')
+    .replace(/^\s*>\s?/gm, '')
+    .replace(/!\[([^\]]*)\]\([^)]*\)/g, '$1')
+    .replace(/\[([^\]]+)\]\([^)]*\)/g, '$1')
+    .replace(/(`+)(.*?)\1/g, '$2')
+    .replace(/\*\*(.*?)\*\*|__(.*?)__/g, '$1$2')
+    .replace(/^\s*[-*+]\s+/gm, '• ')
+    .replace(/\n{3,}/g, '\n\n')
+    .trim();
+}

packages/i18n/locales/en/admin.json

@@ -32,7 +32,10 @@
     "recs_confirm": "Reset {{username}}'s recommendations? The wave will start learning their taste from scratch and ask for favourite artists again. Likes and history stay.",
     "recs_done": "{{username}}'s recommendations were reset",
     "confirm": "Confirm",
-    "you": "you"
+    "you": "you",
+    "manage_updates": "Server updates",
+    "grant_updates": "Grant update management",
+    "revoke_updates": "Revoke update management"
   },
   "create": {
     "title": "New user",
@@ -71,7 +74,8 @@
       "user.unblock": "User unblocked",
       "user.password_reset": "Password reset",
       "user.recommendations_reset": "Recommendations reset",
-      "user.delete": "User deleted"
+      "user.delete": "User deleted",
+      "user.manages_updates": "Server update permission changed"
     }
   },
   "sources": {
@@ -98,7 +102,15 @@
     "delete_confirm": "Delete “{{name}}”? Tracks that exist only in this storage will disappear from the library along with their likes.",
     "scanning": "Scanning: {{processed}} of {{total}}",
     "scan_walking": "Walking folders…",
-    "scan_done": "Found {{found}} · new {{added}} · updated {{updated}} · moved {{moved}} · missing {{missing}} · errors {{errors}}",
+    "excluded_dirs": "Folders to exclude from scanning",
+    "excluded_hint": "One folder per line, relative to the storage root. Example: Downloads_PumpEars. All subfolders are excluded too. Paths are case sensitive; wildcards are not supported. Analysis and its errors are excluded as soon as you save. Existing catalog records are retained. An empty list enables scanning and analysis again.",
+    "excluded_running": "Wait for the current scan to finish before editing exclusions.",
+    "excluded_count": "Folders excluded from scanning: {{count}}",
+    "scan_walk_progress": "Walking folders… Directories checked: {{dirs}} · audio files found: {{found}}",
+    "scan_current_dir": "Current folder: {{path}}",
+    "scan_preparing": "Matching files with the library…",
+    "scan_finalizing": "Finishing scan…",
+    "scan_done": "Found {{found}} · new {{added}} · updated {{updated}} · moved {{moved}} · missing {{missing}} · errors in this scan {{errors}}",
     "scan_failed": "Scan stopped: {{error}}",
     "test_ok": "Reachable, audio files found: {{count}}",
     "test_fail": "Not reachable: {{message}}",
@@ -172,7 +184,15 @@
     "wave_likes": "Likes per 100",
     "wave_model": "Model version",
     "wave_by_model": "Wave model versions compared",
-    "analysis_retry": "Retry"
+    "analysis_retry": "Retry",
+    "analysis_show_errors": "Show files",
+    "analysis_errors_title": "Audio analysis errors",
+    "analysis_errors_hint": "Each track shows its storage, path relative to the storage root and failure reason. Paths come from the current library catalog.",
+    "analysis_errors_empty": "There are no failed analysis jobs.",
+    "analysis_errors_more": "Show more",
+    "analysis_error_source": "Storage: {{name}}",
+    "analysis_error_no_file": "This track no longer has a file in the library.",
+    "analysis_error_unknown": "No error reason was recorded."
   },
   "write_template": {
     "title": "Uploads and path template",
@@ -362,5 +382,85 @@
   "server_settings": {
     "title": "Server settings",
     "subtitle": "Settings that apply to all users"
+  },
+  "management": {
+    "server": "Server management",
+    "updates": "Updates",
+    "config": "Configuration",
+    "updates_intro": "Choose a source and version. The server will build and report the result.",
+    "refresh": "Refresh status",
+    "current": "Installed version",
+    "manual": "Updates start manually. The latest stable release is resolved when you start the update.",
+    "update_target": "Next update",
+    "sources": "Update sources",
+    "source": "Source",
+    "channel": "Update target",
+    "channel_latest": "Latest release",
+    "channel_version": "Choose version",
+    "channel_main": "main",
+    "hint_latest": "Install the latest stable tag, excluding release candidates.",
+    "hint_version": "Choose a published tag. Downgrading to an older version requires a manual rollback.",
+    "hint_main": "The current main branch. May include unreleased changes.",
+    "version": "Version",
+    "choose_version": "Choose a version",
+    "source_unavailable": "Could not read the repository. Check its address, server access and SSH keys.",
+    "install": "Install update",
+    "confirm_update": "Update the server?",
+    "confirm_update_text": "Source: {{source}}. Target: {{target}}.",
+    "update_warning": "The service will be briefly unavailable during restart. Back up the database first. Database migrations are not rolled back.",
+    "cancel": "Cancel",
+    "sources_hint": "Git repositories compatible with Pipu. HTTP(S) or SSH; configure private repository keys on the agent host. Do not include tokens in the URL.",
+    "source_name": "Name",
+    "repository": "Git repository URL",
+    "remove_source": "Remove source",
+    "add_source": "Add source",
+    "save": "Save",
+    "job": "Last operation",
+    "started": "Started",
+    "finished": "Finished",
+    "log": "Execution log",
+    "waiting": "Waiting for command output…",
+    "running_hint": "The task runs on the server. You can close this page without interrupting it.",
+    "reconnecting": "Services are restarting. Waiting to reconnect to the server…",
+    "state": {
+      "running": "Running",
+      "succeeded": "Completed",
+      "failed": "Failed"
+    },
+    "config_intro": "API, recommender and deployment settings in deploy/config.local.",
+    "priority": "Priority order",
+    "defaults": "defaults",
+    "priority_hint": ".env values override config.local. Save and apply are separate actions.",
+    "search": "Search settings",
+    "group": "Section",
+    "all": "All sections",
+    "groups": {
+      "api": "API",
+      "deployment": "Deployment",
+      "shared": "Shared",
+      "recommender": "Recommender"
+    },
+    "config_files_hint": "Supported settings are listed here. “After applying” is the value from .env, config.local or a default. Fixed paths and service parameters are read-only. Secrets can be replaced; their values stay hidden.",
+    "value_source": {
+      "env": "From .env",
+      "local": "From config.local",
+      "default": "Default"
+    },
+    "effective": "After applying",
+    "readonly": "Service parameter. Change on the host together with its Compose configuration.",
+    "secret_saved": "Secret saved",
+    "will_reset": "The local value will be removed when saved.",
+    "overridden": "A value in .env takes priority. This local change will not take effect yet.",
+    "secret_hint": "Leave unchanged to keep the stored secret. Enter a new value to replace it.",
+    "default": "Default",
+    "reset": "Reset local value",
+    "no_results": "No settings found",
+    "saved": "Changes saved to config.local",
+    "unsaved": "Unsaved settings: {{count}}",
+    "pending_restart": "Saved changes are waiting to be applied",
+    "no_changes": "No changes to apply",
+    "discard": "Discard edits",
+    "apply": "Apply and restart",
+    "apply_warning": "Containers will be recreated with the saved configuration. The service will be briefly unavailable; persistent volume data is preserved. Values from .env will keep taking priority."
   }
 }

packages/i18n/locales/en/auth.json

@@ -51,9 +51,9 @@
     "copy_server": "Copy the server address",
     "step_updates": {
       "android": "Sign in with your account. The app offers new versions by itself.",
-      "windows": "Sign in with your account. Get a new version from this page.",
-      "linux": "Sign in with your account. Get a new version from this page.",
-      "macos": "Sign in with your account. Get a new version from this page."
+      "windows": "Sign in with your account. The app will offer new versions.",
+      "linux": "Sign in with your account. The app will offer new versions through your system package installer.",
+      "macos": "Sign in with your account. The app will offer new versions."
     },
     "checksum": "SHA-256 checksum",
     "unavailable": "Apps are not available yet: release downloads are not configured on this server (docs/deployment.md).",

packages/i18n/locales/en/common.json

@@ -1,11 +1,29 @@
 {
+  "desktop": {
+    "offline": "Downloads and cache",
+    "save_track": "Download",
+    "remove_download": "Remove download",
+    "download_failed": "Could not download the track",
+    "storage_failed": "Could not open or change the cache. Check available disk space.",
+    "cache_hint": "Recent tracks are cached automatically (up to 500 MB). Manual downloads remain until removed. Available offline, including after restarting the app.",
+    "clear_recent": "Clear recent cache",
+    "offline_empty": "Played and downloaded tracks will appear here.",
+    "updates": "App updates",
+    "check_failed": "Could not check for updates. Try again later.",
+    "installer_open": "The installer is open. Complete installation and restart the app."
+  },
   "genius": {
     "description": "Lyrics, annotations and missing artwork from Genius. Local artwork takes priority.",
-    "loading": "Loading…", "disabled": "Not configured", "paused": "Paused", "cooldown": "Waiting after Genius rate limit", "running": "Processing", "waiting": "Waiting for new tracks",
+    "loading": "Loading…", "disabled": "Not configured", "paused": "Processing paused", "cooldown": "Waiting after Genius rate limit", "running": "Fetching data from Genius…", "queued": "Queue awaiting processing", "waiting": "Waiting for new tracks",
+    "progress": "Processed {{processed}} of {{total}} tracks",
+    "progress_label": "Genius processing progress",
+    "progress_hint": "Processed tracks include errors and unmatched tracks. Data refreshes every 5 seconds.",
+    "controls_hint": "The queue is processed automatically. Pausing saves progress; resuming continues with the remaining tracks.",
+    "retry_hint": "Retry queues only tracks with errors, incomplete data or no match, and resumes processing. Successfully processed tracks stay unchanged.",
     "configure": "Add GENIUS_ACCESS_TOKEN to deploy/.env and recreate the API container.",
     "total": "Total tracks", "pending": "Queued", "matched": "Matched on Genius", "lyrics": "Lyrics", "annotations": "With annotations", "images": "With artwork", "unmatched": "No exact match", "errors": "Errors / incomplete data",
     "last_error": "Last error", "token_error": "Genius rejected the token. Check it and restart the API.", "access_error": "Genius restricted access. Processing is paused.", "no_lyrics": "Lyrics are currently unavailable.", "request_error": "Some data could not be retrieved. A retry is scheduled automatically.", "resume_at": "Retry no earlier than",
-    "start": "Resume", "pause": "Pause", "retry": "Retry errors and unmatched", "pending_text": "This track is waiting for Genius processing.", "about": "About the song", "explanations": "Song annotations", "verified": "Verified on Genius"
+    "start": "Resume processing", "pause": "Pause processing", "retry": "Queue tracks needing attention", "pending_text": "This track is waiting for Genius processing.", "about": "About the song", "explanations": "Song annotations", "verified": "Verified on Genius"
   },
   "app": {
     "name": "pipu",
@@ -44,7 +62,9 @@
     "suggest": "Suggest tracks",
     "my_uploads": "My uploads",
     "upload_queue": "Queue",
-    "admin_settings": "Settings"
+    "admin_settings": "Settings",
+    "server_updates": "Updates",
+    "server_config": "Configuration"
   },
   "profile": {
     "menu": "Profile menu",

packages/i18n/locales/en/errors.json

@@ -42,6 +42,7 @@
     "pattern_invalid": "Pattern error: {{reason}}",
     "nfs_invalid": "Invalid value",
     "local_path_invalid": "Folder not found",
+    "excluded_dirs_invalid": "Enter up to 100 folders: relative paths without .., one per line (up to 1000 characters).",
     "name_invalid": "The name must be 1 to {{max}} characters",
     "scan_interval_invalid": "The interval must be at least {{min}} minutes",
     "source_type_invalid": "Unknown storage type",
@@ -100,5 +101,21 @@
     "invalid_tracks": "Tracks must be unique and exist in the library",
     "too_large": "Maximum 2000 tracks and 2000 description characters",
     "conflict": "This playlist changed on another device. Close the editor and try again with the refreshed data."
+  },
+  "management": {
+    "unavailable": "Server management agent is unavailable. Run sudo bash deploy/install-management.sh on the server and check pipu-management.service.",
+    "timeout": "The agent timed out. Check operation status before retrying.",
+    "busy": "A server operation is already running. Wait for it to finish.",
+    "source_invalid": "Check source names and URLs. Embedded passwords and tokens are not supported.",
+    "source_unavailable": "The repository is unavailable from the server.",
+    "target_invalid": "The selected version is unavailable or changed. Refresh the list and try again.",
+    "no_releases": "No stable release tags were found.",
+    "config_conflict": "Another administrator changed the configuration. Reload the page and repeat your edits.",
+    "config_invalid": "Invalid value or Compose configuration. Changes were not saved.",
+    "config_readonly": "This setting cannot be changed in the interface.",
+    "agent_error": "The agent could not complete the operation. Check journalctl -u pipu-management.",
+    "request_expired": "The request expired. Check operation status before retrying.",
+    "request_invalid": "Invalid server management request.",
+    "operation_invalid": "Unsupported server management operation."
   }
 }

packages/i18n/locales/ru/admin.json

@@ -32,7 +32,10 @@
     "recs_confirm": "Сбросить рекомендации {{username}}? Волна начнёт подбирать музыку с нуля и снова спросит любимых исполнителей. Лайки и история останутся.",
     "recs_done": "Рекомендации {{username}} сброшены",
     "confirm": "Подтвердить",
-    "you": "вы"
+    "you": "вы",
+    "manage_updates": "Обновление сервера",
+    "grant_updates": "Дать управление обновлениями",
+    "revoke_updates": "Забрать управление обновлениями"
   },
   "create": {
     "title": "Новый пользователь",
@@ -71,7 +74,8 @@
       "user.unblock": "Пользователь разблокирован",
       "user.password_reset": "Сброшен пароль",
       "user.recommendations_reset": "Сброшены рекомендации",
-      "user.delete": "Пользователь удалён"
+      "user.delete": "Пользователь удалён",
+      "user.manages_updates": "Изменены права обновления сервера"
     }
   },
   "sources": {
@@ -98,7 +102,15 @@
     "delete_confirm": "Удалить «{{name}}»? Треки, которые есть только в этом хранилище, пропадут из библиотеки вместе с лайками.",
     "scanning": "Сканирование: {{processed}} из {{total}}",
     "scan_walking": "Обход папок…",
-    "scan_done": "Найдено {{found}} · новых {{added}} · обновлено {{updated}} · перемещено {{moved}} · пропало {{missing}} · ошибок {{errors}}",
+    "excluded_dirs": "Не сканировать папки",
+    "excluded_hint": "По одной папке в строке, путь от корня хранилища. Например: Downloads_PumpEars. Все подпапки тоже исключаются. Учитывается регистр; шаблоны со звёздочкой не поддерживаются. Анализ и его ошибки отключаются сразу после сохранения. Уже добавленные записи сохраняются. Пустой список возвращает папки в сканирование и анализ.",
+    "excluded_running": "Дождитесь завершения сканирования, чтобы изменить исключения.",
+    "excluded_count": "Исключено папок из сканирования: {{count}}",
+    "scan_walk_progress": "Обход папок… Проверено папок: {{dirs}} · найдено аудиофайлов: {{found}}",
+    "scan_current_dir": "Текущая папка: {{path}}",
+    "scan_preparing": "Сопоставление файлов с библиотекой…",
+    "scan_finalizing": "Завершение сканирования…",
+    "scan_done": "Найдено {{found}} · новых {{added}} · обновлено {{updated}} · перемещено {{moved}} · пропало {{missing}} · ошибок в этом скане {{errors}}",
     "scan_failed": "Скан прервался: {{error}}",
     "test_ok": "Доступно, найдено аудиофайлов: {{count}}",
     "test_fail": "Нет доступа: {{message}}",
@@ -172,7 +184,15 @@
     "wave_likes": "Лайков на 100",
     "wave_model": "Версия модели",
     "wave_by_model": "Сравнение версий модели волны",
-    "analysis_retry": "Повторить"
+    "analysis_retry": "Повторить",
+    "analysis_show_errors": "Показать файлы",
+    "analysis_errors_title": "Ошибки аудиоанализа",
+    "analysis_errors_hint": "Для каждого трека показаны хранилище, путь относительно его корня и причина сбоя. Пути берутся из текущего каталога библиотеки.",
+    "analysis_errors_empty": "Неудавшихся задач анализа нет.",
+    "analysis_errors_more": "Показать ещё",
+    "analysis_error_source": "Хранилище: {{name}}",
+    "analysis_error_no_file": "В библиотеке больше нет файла этого трека.",
+    "analysis_error_unknown": "Причина ошибки не указана."
   },
   "write_template": {
     "title": "Приём загрузок и шаблон пути",
@@ -362,5 +382,85 @@
   "server_settings": {
     "title": "Настройки сервера",
     "subtitle": "Параметры, которые действуют для всех пользователей"
+  },
+  "management": {
+    "server": "Управление сервером",
+    "updates": "Обновления",
+    "config": "Конфигурация",
+    "updates_intro": "Выберите источник и версию. Сервер выполнит сборку и покажет результат.",
+    "refresh": "Обновить статус",
+    "current": "Установленная версия",
+    "manual": "Обновления запускаются вручную. Последний стабильный релиз выбирается в момент запуска.",
+    "update_target": "Следующее обновление",
+    "sources": "Источники обновлений",
+    "source": "Источник",
+    "channel": "Тип обновления",
+    "channel_latest": "Последний релиз",
+    "channel_version": "Выбрать версию",
+    "channel_main": "main",
+    "hint_latest": "Будет установлен последний стабильный тег без release candidate.",
+    "hint_version": "Можно выбрать опубликованный тег. Переход на старую версию требует ручного отката.",
+    "hint_main": "Текущее состояние ветки main. Может содержать ещё не выпущенные изменения.",
+    "version": "Версия",
+    "choose_version": "Выберите версию",
+    "source_unavailable": "Не удалось прочитать репозиторий. Проверьте адрес, доступ сервера и SSH-ключи.",
+    "install": "Установить обновление",
+    "confirm_update": "Обновить сервер?",
+    "confirm_update_text": "Источник: {{source}}. Цель: {{target}}.",
+    "update_warning": "Во время перезапуска сервис временно недоступен. Перед обновлением сделайте резервную копию базы. Миграции назад не откатываются.",
+    "cancel": "Отмена",
+    "sources_hint": "Git-репозитории с совместимой структурой Pipu. HTTP(S) или SSH; для приватных репозиториев настройте ключи на хосте агента. Не вставляйте токены в адрес.",
+    "source_name": "Название",
+    "repository": "URL Git-репозитория",
+    "remove_source": "Удалить источник",
+    "add_source": "Добавить источник",
+    "save": "Сохранить",
+    "job": "Последняя операция",
+    "started": "Начало",
+    "finished": "Завершение",
+    "log": "Журнал выполнения",
+    "waiting": "Ожидаем вывод команды…",
+    "running_hint": "Задача выполняется на сервере. Страницу можно закрыть — выполнение продолжится.",
+    "reconnecting": "Сервисы перезапускаются. Ждём восстановления связи с сервером…",
+    "state": {
+      "running": "Выполняется",
+      "succeeded": "Готово",
+      "failed": "Ошибка"
+    },
+    "config_intro": "Настройки API, рекомендателя и развёртывания в deploy/config.local.",
+    "priority": "Порядок приоритета",
+    "defaults": "по умолчанию",
+    "priority_hint": "Значения из .env перекрывают config.local. Сохранение и применение — отдельные действия.",
+    "search": "Поиск по названию настройки",
+    "group": "Раздел",
+    "all": "Все разделы",
+    "groups": {
+      "api": "API",
+      "deployment": "Развёртывание",
+      "shared": "Общие",
+      "recommender": "Рекомендатель"
+    },
+    "config_files_hint": "Показаны поддерживаемые параметры. «После применения» — значение из .env, config.local или значение по умолчанию. Фиксированные пути и служебные параметры доступны для просмотра. Секреты можно заменить, их значения скрыты.",
+    "value_source": {
+      "env": "Из .env",
+      "local": "Из config.local",
+      "default": "По умолчанию"
+    },
+    "effective": "После применения",
+    "readonly": "Служебный параметр. Меняется на хосте с учётом конфигурации Compose.",
+    "secret_saved": "Секрет сохранён",
+    "will_reset": "Локальное значение будет удалено при сохранении.",
+    "overridden": "В .env есть значение: оно имеет приоритет. Локальное изменение пока не вступит в силу.",
+    "secret_hint": "Оставьте поле без изменений, чтобы сохранить секрет. Введите новое значение для замены.",
+    "default": "По умолчанию",
+    "reset": "Сбросить локальное",
+    "no_results": "Настройки не найдены",
+    "saved": "Изменения сохранены в config.local",
+    "unsaved": "Несохранённых параметров: {{count}}",
+    "pending_restart": "Сохранённые изменения ожидают применения",
+    "no_changes": "Нет изменений для применения",
+    "discard": "Отменить правки",
+    "apply": "Применить и перезапустить",
+    "apply_warning": "Контейнеры будут пересозданы с сохранённой конфигурацией. Сервис временно недоступен; данные в постоянных томах сохранятся. Значения из .env продолжат иметь приоритет."
   }
 }

packages/i18n/locales/ru/auth.json

@@ -51,9 +51,9 @@
     "copy_server": "Скопировать адрес сервера",
     "step_updates": {
       "android": "Войдите своим логином. Новые версии приложение предложит установить само.",
-      "windows": "Войдите своим логином. Новую версию скачайте с этой страницы.",
-      "linux": "Войдите своим логином. Новую версию скачайте с этой страницы.",
-      "macos": "Войдите своим логином. Новую версию скачайте с этой страницы."
+      "windows": "Войдите своим логином. Приложение предложит установить новые версии.",
+      "linux": "Войдите своим логином. Приложение предложит установить новые версии через системный установщик пакетов.",
+      "macos": "Войдите своим логином. Приложение предложит установить новые версии."
     },
     "checksum": "Контрольная сумма SHA-256",
     "unavailable": "Приложения пока недоступны: на сервере не настроена загрузка релизов (docs/deployment.md).",

packages/i18n/locales/ru/common.json

@@ -1,11 +1,29 @@
 {
+  "desktop": {
+    "offline": "Скачанное и кеш",
+    "save_track": "Скачать",
+    "remove_download": "Удалить загрузку",
+    "download_failed": "Не удалось скачать трек",
+    "storage_failed": "Не удалось открыть или изменить кеш. Проверьте свободное место.",
+    "cache_hint": "Недавние треки сохраняются автоматически (до 500 МБ). Скачанные вручную остаются до удаления. Доступны без сети, в том числе после перезапуска.",
+    "clear_recent": "Очистить кеш недавних",
+    "offline_empty": "Здесь появятся прослушанные и скачанные треки.",
+    "updates": "Обновления приложения",
+    "check_failed": "Не удалось проверить обновления. Повторите позже.",
+    "installer_open": "Установщик открыт. Завершите установку и перезапустите приложение."
+  },
   "genius": {
     "description": "Тексты, пояснения и недостающие картинки из Genius. Локальные обложки имеют приоритет.",
-    "loading": "Загрузка…", "disabled": "Не подключён", "paused": "Приостановлено", "cooldown": "Ожидание после ограничения Genius", "running": "Обработка", "waiting": "Ожидание новых треков",
+    "loading": "Загрузка…", "disabled": "Не подключён", "paused": "Обработка приостановлена", "cooldown": "Ожидание после ограничения Genius", "running": "Получение данных из Genius…", "queued": "Очередь ожидает обработки", "waiting": "Ожидание новых треков",
+    "progress": "Обработано {{processed}} из {{total}} треков",
+    "progress_label": "Прогресс обработки Genius",
+    "progress_hint": "В обработанные входят треки с ошибками и без совпадения. Данные обновляются каждые 5 секунд.",
+    "controls_hint": "Очередь обрабатывается автоматически. Пауза сохраняет прогресс; продолжение возобновляет обработку оставшихся треков.",
+    "retry_hint": "Повтор добавит в очередь только треки с ошибками, неполными данными и без совпадения, а также снимет паузу. Успешно обработанные треки останутся без изменений.",
     "configure": "Добавьте GENIUS_ACCESS_TOKEN в deploy/.env и пересоздайте контейнер API.",
     "total": "Всего треков", "pending": "В очереди", "matched": "Найдено в Genius", "lyrics": "Тексты", "annotations": "С пояснениями", "images": "С картинками", "unmatched": "Нет точного совпадения", "errors": "Ошибки / неполные данные",
     "last_error": "Последняя ошибка", "token_error": "Genius отклонил токен. Проверьте его и перезапустите API.", "access_error": "Genius ограничил доступ. Обработка приостановлена.", "no_lyrics": "Текст пока недоступен.", "request_error": "Не удалось получить все данные. Повтор запланирован автоматически.", "resume_at": "Повтор не раньше",
-    "start": "Продолжить", "pause": "Приостановить", "retry": "Повторить ошибки и ненайденные", "pending_text": "Трек ожидает обработки Genius.", "about": "О песне", "explanations": "Пояснения к песне", "verified": "Подтверждено в Genius"
+    "start": "Продолжить обработку", "pause": "Приостановить обработку", "retry": "Добавить проблемные треки в очередь", "pending_text": "Трек ожидает обработки Genius.", "about": "О песне", "explanations": "Пояснения к песне", "verified": "Подтверждено в Genius"
   },
   "app": {
     "name": "pipu",
@@ -44,7 +62,9 @@
     "suggest": "Предложить треки",
     "my_uploads": "Мои предложения",
     "upload_queue": "Очередь",
-    "admin_settings": "Настройки"
+    "admin_settings": "Настройки",
+    "server_updates": "Обновления",
+    "server_config": "Конфигурация"
   },
   "profile": {
     "menu": "Меню профиля",

packages/i18n/locales/ru/errors.json

@@ -42,6 +42,7 @@
     "pattern_invalid": "Ошибка в шаблоне: {{reason}}",
     "nfs_invalid": "Недопустимое значение",
     "local_path_invalid": "Папка не найдена",
+    "excluded_dirs_invalid": "Укажите до 100 папок: относительные пути без .., по одной папке в строке (до 1000 символов).",
     "name_invalid": "Название — от 1 до {{max}} символов",
     "scan_interval_invalid": "Интервал — не меньше {{min}} минут",
     "source_type_invalid": "Неизвестный тип хранилища",
@@ -100,5 +101,21 @@
     "invalid_tracks": "Треки не должны повторяться и должны существовать в библиотеке",
     "too_large": "Максимум 2000 треков и 2000 символов описания",
     "conflict": "Плейлист изменён на другом устройстве. Закройте редактор и повторите изменение с обновлёнными данными."
+  },
+  "management": {
+    "unavailable": "Агент управления сервером недоступен. Выполните sudo bash deploy/install-management.sh на сервере и проверьте pipu-management.service.",
+    "timeout": "Агент не ответил вовремя. Проверьте статус операции перед повторным запуском.",
+    "busy": "На сервере уже выполняется операция. Дождитесь завершения.",
+    "source_invalid": "Проверьте названия и адреса источников. Токены и пароли в URL не поддерживаются.",
+    "source_unavailable": "Репозиторий недоступен с сервера.",
+    "target_invalid": "Выбранная версия недоступна или изменилась. Обновите список и повторите.",
+    "no_releases": "В источнике нет стабильных релизных тегов.",
+    "config_conflict": "Конфигурация изменена другим администратором. Обновите страницу и повторите правки.",
+    "config_invalid": "Недопустимое значение или конфигурация Compose. Изменения не сохранены.",
+    "config_readonly": "Этот параметр нельзя менять через интерфейс.",
+    "agent_error": "Агент не смог выполнить операцию. Проверьте journalctl -u pipu-management.",
+    "request_expired": "Запрос устарел. Проверьте статус перед повтором.",
+    "request_invalid": "Недопустимый запрос управления сервером.",
+    "operation_invalid": "Операция управления сервером не поддерживается."
   }
 }

services/api/cmd/api/main.go

@@ -23,6 +23,7 @@ import (
 	"pipu/api/internal/buildinfo"
 	"pipu/api/internal/genius"
 	"pipu/api/internal/library"
+	"pipu/api/internal/management"
 	"pipu/api/internal/platform/config"
 	"pipu/api/internal/platform/db"
 	"pipu/api/internal/platform/httpx"
@@ -172,6 +173,7 @@ func newApp(ctx context.Context, cfg config.API, pool *pgxpool.Pool, rdb *redis.
 		Client: &http.Client{}}, libStore, dto, log)
 	wh.Warm = pb.Prewarm
 	return server.NewRouter(server.Deps{
+		Management:  management.NewHandler(management.Mailbox{Dir: cfg.ManagementDir}),
 		Genius:      genius.NewHandler(geniusSvc),
 		Log:         log,
 		System:      sys,

services/api/internal/auth/admin.go

@@ -78,6 +78,7 @@ type CreateUserInput struct {
 	Username       string
 	DisplayName    string
 	Role           Role
+	ManagesUpdates bool
 	ReviewsUploads bool
 }
 
@@ -89,7 +90,7 @@ func (s *Service) CreateUser(ctx context.Context, p Principal, in CreateUserInpu
 	if !CanAssignRole(p.Role, in.Role) || !CanManageUser(actorOf(p), Actor{Role: in.Role}, UserCreate) {
 		return User{}, "", forbidden()
 	}
-	if in.ReviewsUploads && p.Role != RoleAdmin {
+	if (in.ReviewsUploads || in.ManagesUpdates) && p.Role != RoleAdmin {
 		return User{}, "", forbidden()
 	}
 	username := NormalizeUsername(in.Username)
@@ -114,7 +115,7 @@ func (s *Service) CreateUser(ctx context.Context, p Principal, in CreateUserInpu
 	}
 	u := User{
 		ID: s.ids.New(), Username: username, DisplayName: name, PasswordHash: hash, Role: in.Role,
-		ReviewsUploads: in.ReviewsUploads, Locale: locale,
+		ReviewsUploads: in.ReviewsUploads, ManagesUpdates: in.ManagesUpdates, Locale: locale,
 		MustChangePassword: true, CreatedAt: s.clock.Now(),
 	}
 	err = s.store.WithTx(ctx, func(tx Store) error {
@@ -123,7 +124,7 @@ func (s *Service) CreateUser(ctx context.Context, p Principal, in CreateUserInpu
 		}
 		return tx.InsertAudit(ctx, s.ids.New(), AuditEntry{
 			ActorID: &p.UserID, Action: "user.create", TargetType: "user", TargetID: &u.ID,
-			Payload: map[string]any{"username": username, "role": string(in.Role), "reviews_uploads": in.ReviewsUploads},
+			Payload: map[string]any{"username": username, "role": string(in.Role), "reviews_uploads": in.ReviewsUploads, "manages_updates": in.ManagesUpdates},
 		})
 	})
 	if errors.Is(err, ErrUsernameTaken) {
@@ -154,6 +155,7 @@ type UserPatch struct {
 	DisplayName    *string
 	Role           *Role
 	IsBlocked      *bool
+	ManagesUpdates *bool
 	ReviewsUploads *bool
 }
 
@@ -218,6 +220,15 @@ func (s *Service) UpdateUser(ctx context.Context, p Principal, id uuid.UUID, pat
 			upd.ReviewsUploads = patch.ReviewsUploads
 			audit("user.reviews_uploads", map[string]any{"reviews_uploads": *patch.ReviewsUploads})
 		}
+		if patch.ManagesUpdates != nil {
+			if p.Role != RoleAdmin {
+				return forbidden()
+			}
+			if *patch.ManagesUpdates != target.ManagesUpdates {
+				upd.ManagesUpdates = patch.ManagesUpdates
+				audit("user.manages_updates", map[string]any{"manages_updates": *patch.ManagesUpdates})
+			}
+		}
 		blockChange := patch.IsBlocked != nil && *patch.IsBlocked != target.IsBlocked
 		if blockChange {
 			if !CanManageUser(actor, tgt, UserBlock) {

services/api/internal/auth/admin_handler.go

@@ -44,6 +44,9 @@ func (h *Handler) CreateUser(ctx context.Context, req gen.CreateUserRequestObjec
 		return nil, err
 	}
 	in := CreateUserInput{Username: req.Body.Username, Role: Role(req.Body.Role)}
+	if req.Body.ManagesUpdates != nil {
+		in.ManagesUpdates = *req.Body.ManagesUpdates
+	}
 	if req.Body.ReviewsUploads != nil {
 		in.ReviewsUploads = *req.Body.ReviewsUploads
 	}
@@ -63,7 +66,7 @@ func (h *Handler) UpdateUser(ctx context.Context, req gen.UpdateUserRequestObjec
 	if err != nil {
 		return nil, err
 	}
-	patch := UserPatch{Username: req.Body.Username, DisplayName: req.Body.DisplayName, IsBlocked: req.Body.IsBlocked, ReviewsUploads: req.Body.ReviewsUploads}
+	patch := UserPatch{Username: req.Body.Username, DisplayName: req.Body.DisplayName, IsBlocked: req.Body.IsBlocked, ReviewsUploads: req.Body.ReviewsUploads, ManagesUpdates: req.Body.ManagesUpdates}
 	if req.Body.Role != nil {
 		r := Role(*req.Body.Role)
 		patch.Role = &r
@@ -151,6 +154,7 @@ func AdminUserDTO(u User) gen.AdminUser {
 		DisplayName:           u.DisplayName,
 		Role:                  gen.Role(u.Role),
 		ReviewsUploads:        u.ReviewsUploads,
+		ManagesUpdates:        updatePermission(u),
 		Locale:                u.Locale,
 		IsBlocked:             u.IsBlocked,
 		MustChangePassword:    u.MustChangePassword,

services/api/internal/auth/admin_test.go

@@ -448,3 +448,25 @@ func TestReviewUploadsGrant(t *testing.T) {
 	me = e.do(http.MethodGet, "/api/v1/me", nil, bearer(mod))
 	assert.Equal(t, true, me.body["reviews_uploads"])
 }
+
+func TestManageUpdatesGrantAndRevoke(t *testing.T) {
+	e := newEnv(t)
+	e.addUser("root", "root-password-1", auth.RoleAdmin)
+	admin := e.signIn("root", "root-password-1")
+	target := e.addUser("mod", "mod-password-1", auth.RoleModerator)
+	mod := e.signIn("mod", "mod-password-1")
+	path := "/api/v1/admin/users/" + target.ID.String()
+	grant := map[string]any{"manages_updates": true}
+	assert.Equal(t, true, e.do(http.MethodGet, "/api/v1/me", nil, bearer(admin)).body["manages_updates"])
+	assert.Equal(t, auth.CodeForbidden, e.do(http.MethodPatch, path, grant, bearer(mod)).code())
+	assert.Equal(t, auth.CodeForbidden, e.do(http.MethodPost, "/api/v1/admin/users", map[string]any{"username": "delegate", "role": "user", "manages_updates": true}, bearer(mod)).code())
+	r := e.do(http.MethodPatch, path, grant, bearer(admin))
+	require.Equal(t, http.StatusOK, r.Code, r.Body.String())
+	assert.Equal(t, true, r.body["manages_updates"])
+	assert.Equal(t, true, e.do(http.MethodGet, "/api/v1/me", nil, bearer(mod)).body["manages_updates"])
+	r = e.do(http.MethodPatch, path, map[string]any{"manages_updates": false}, bearer(admin))
+	require.Equal(t, http.StatusOK, r.Code)
+	assert.Equal(t, false, e.do(http.MethodGet, "/api/v1/me", nil, bearer(mod)).body["manages_updates"])
+	r = e.do(http.MethodPost, "/api/v1/admin/users", map[string]any{"username": "delegate", "role": "user", "manages_updates": true}, bearer(admin))
+	require.Equal(t, http.StatusCreated, r.Code, r.Body.String())
+}

services/api/internal/auth/authtest/memstore.go

@@ -317,6 +317,9 @@ func (s *MemStore) UpdateUser(ctx context.Context, id uuid.UUID, upd auth.UserUp
 		if upd.ReviewsUploads != nil {
 			u.ReviewsUploads = *upd.ReviewsUploads
 		}
+		if upd.ManagesUpdates != nil {
+			u.ManagesUpdates = *upd.ManagesUpdates
+		}
 		if upd.RevokeTokens {
 			u.TokenVersion++
 		}

services/api/internal/auth/handler.go

@@ -232,6 +232,7 @@ func MeDTO(u User) gen.Me {
 		DisplayName:           u.DisplayName,
 		Role:                  gen.Role(u.Role),
 		ReviewsUploads:        u.ReviewsUploads,
+		ManagesUpdates:        updatePermission(u),
 		Locale:                u.Locale,
 		UiPrefs:               uiPrefsDTO(u.UIPrefs),
 		MustChangePassword:    u.MustChangePassword,
@@ -271,3 +272,5 @@ func uiPrefsFromDTO(p gen.UiPrefs) UIPrefs {
 		Normalize:    p.Normalize,
 	}
 }
+
+func updatePermission(u User) *bool { v := u.ManagesUpdates || u.Role == RoleAdmin; return &v }

services/api/internal/auth/model.go

@@ -55,6 +55,7 @@ type User struct {
 	DisplayName           *string
 	PasswordHash          string
 	Role                  Role
+	ManagesUpdates        bool
 	ReviewsUploads        bool // аудит очереди на добавление; не следует из роли
 	Locale                string
 	UIPrefs               UIPrefs
@@ -96,6 +97,7 @@ type Session struct {
 type Principal struct {
 	UserID                uuid.UUID
 	Role                  Role
+	ManagesUpdates        bool
 	ReviewsUploads        bool
 	SessionID             uuid.UUID
 	MustChangePassword    bool

services/api/internal/auth/pgstore.go

@@ -40,7 +40,7 @@ func (s *PgStore) WithTx(ctx context.Context, fn func(Store) error) error {
 
 const userColumns = `id, username, display_name, password_hash, role, locale, ui_prefs, must_change_password,
 	must_change_credentials, is_blocked, token_version, failed_login_count, locked_until, created_at, last_login_at,
-	reviews_uploads`
+	reviews_uploads, manages_updates`
 
 func scanUser(row pgx.Row) (User, error) {
 	var (
@@ -50,7 +50,7 @@ func scanUser(row pgx.Row) (User, error) {
 	)
 	err := row.Scan(&u.ID, &u.Username, &u.DisplayName, &u.PasswordHash, &role, &u.Locale, &prefs,
 		&u.MustChangePassword, &u.MustChangeCredentials, &u.IsBlocked, &u.TokenVersion, &u.FailedLoginCount,
-		&u.LockedUntil, &u.CreatedAt, &u.LastLoginAt, &u.ReviewsUploads)
+		&u.LockedUntil, &u.CreatedAt, &u.LastLoginAt, &u.ReviewsUploads, &u.ManagesUpdates)
 	if errors.Is(err, pgx.ErrNoRows) {
 		return User{}, ErrNotFound
 	}
@@ -82,10 +82,10 @@ func (s *PgStore) CreateUser(ctx context.Context, u User, createdBy *uuid.UUID)
 	}
 	_, err = s.q.Exec(ctx, `
 		INSERT INTO users (id, username, display_name, password_hash, role, locale, ui_prefs,
-			must_change_password, must_change_credentials, created_by, created_at, updated_at, reviews_uploads)
-		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $11, $12)`,
+			must_change_password, must_change_credentials, created_by, created_at, updated_at, reviews_uploads, manages_updates)
+		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $11, $12, $13)`,
 		u.ID, u.Username, u.DisplayName, u.PasswordHash, string(u.Role), u.Locale, prefs,
-		u.MustChangePassword, u.MustChangeCredentials, createdBy, u.CreatedAt, u.ReviewsUploads)
+		u.MustChangePassword, u.MustChangeCredentials, createdBy, u.CreatedAt, u.ReviewsUploads, u.ManagesUpdates)
 	if isUniqueViolation(err) {
 		return ErrUsernameTaken
 	}
@@ -347,10 +347,11 @@ func (s *PgStore) UpdateUser(ctx context.Context, id uuid.UUID, upd UserUpdate)
 			role = COALESCE($4::user_role, role),
 			is_blocked = COALESCE($5, is_blocked),
 			reviews_uploads = COALESCE($7, reviews_uploads),
+			manages_updates = COALESCE($9, manages_updates),
 			token_version = token_version + CASE WHEN $6 THEN 1 ELSE 0 END,
 			updated_at = now()
 		WHERE id = $1
-		RETURNING `+userColumns, id, setName, name, role, upd.IsBlocked, upd.RevokeTokens, upd.ReviewsUploads, upd.Username))
+		RETURNING `+userColumns, id, setName, name, role, upd.IsBlocked, upd.RevokeTokens, upd.ReviewsUploads, upd.Username, upd.ManagesUpdates))
 	if isUniqueViolation(err) {
 		return User{}, ErrUsernameTaken
 	}

services/api/internal/auth/policy.go

@@ -16,6 +16,7 @@ const (
 	PermSuggestTracks                       // предлагать треки, видеть свои предложения
 	PermReviewUploads                       // очередь, одобрение, правка метаданных; даёт флаг, не роль
 	PermSystemStatus                        // статус рекомендательной системы, аудит
+	PermManageUpdates                       // обновление сервера; admin или выданное право
 )
 
 var permissions = map[Permission][]Role{
@@ -25,6 +26,7 @@ var permissions = map[Permission][]Role{
 	PermViewLibraryStatus: {RoleModerator, RoleAdmin},
 	PermSuggestTracks:     {RoleModerator, RoleAdmin},
 	PermSystemStatus:      {RoleAdmin},
+	PermManageUpdates:     {RoleAdmin},
 }
 
 // Can сообщает, есть ли у роли глобальное право.
@@ -40,6 +42,12 @@ func Can(r Role, p Permission) bool {
 
 // Allowed — право конкретного пользователя. Аудит загрузок не вытекает из роли admin.
 func (p Principal) Allowed(perm Permission) bool {
+	if perm == PermManageUpdates {
+		return p.Role == RoleAdmin || p.ManagesUpdates
+	}
+	if perm == PermAdminPanel && p.ManagesUpdates {
+		return true
+	}
 	if perm == PermReviewUploads {
 		return p.ReviewsUploads
 	}

services/api/internal/auth/policy_test.go

@@ -21,6 +21,7 @@ func TestCan(t *testing.T) {
 		{PermViewLibraryStatus, "library status", [3]bool{false, true, true}},
 		{PermSuggestTracks, "suggest tracks", [3]bool{false, true, true}},
 		{PermSystemStatus, "system status", [3]bool{false, false, true}},
+		{PermManageUpdates, "manage updates", [3]bool{false, false, true}},
 	}
 	roles := [3]Role{RoleUser, RoleModerator, RoleAdmin}
 	for _, row := range matrix {

services/api/internal/auth/service.go

@@ -369,6 +369,7 @@ func (s *Service) Authenticate(ctx context.Context, access string) (Principal, e
 		UserID:                u.ID,
 		Role:                  u.Role,
 		ReviewsUploads:        u.ReviewsUploads,
+		ManagesUpdates:        u.ManagesUpdates || u.Role == RoleAdmin,
 		SessionID:             claims.SessionID,
 		MustChangePassword:    u.MustChangePassword,
 		MustChangeCredentials: u.MustChangeCredentials,

services/api/internal/auth/store.go

@@ -35,6 +35,7 @@ type UserUpdate struct {
 	DisplayName    **string
 	Role           *Role
 	IsBlocked      *bool
+	ManagesUpdates *bool
 	ReviewsUploads *bool
 	RevokeTokens   bool
 }

services/api/internal/dbtest/library_diagnostics_test.go

@@ -0,0 +1,160 @@
+//go:build integration
+
+package dbtest
+
+import (
+	"context"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+
+	"pipu/api/internal/library"
+	"pipu/api/internal/platform/db"
+)
+
+func TestLibraryDiagnostics(t *testing.T) {
+	pool := connect(t)
+	ctx := context.Background()
+	require.NoError(t, db.Migrate(ctx, pool))
+	store := library.NewStore(pool)
+	src, err := store.SaveSource(ctx, library.Source{ID: uuid.New(), Name: "diagnostics", Type: library.SourceLocal, Status: "mounted", TagsFirst: true, NFSOptions: "ro"})
+	require.NoError(t, err)
+	t.Cleanup(func() {
+		require.NoError(t, store.DeleteSource(ctx, src.ID))
+		require.NoError(t, store.CleanupOrphans(ctx))
+	})
+	before, err := store.Counts(ctx)
+	require.NoError(t, err)
+	badID, err := store.SaveFile(ctx, src.ID, uuid.Nil, library.FileData{RelPath: "broken.mp3", Mtime: time.Now(), ScanError: "invalid audio"}, nil)
+	require.NoError(t, err)
+	counts, err := store.Counts(ctx)
+	require.NoError(t, err)
+	require.Equal(t, before.Errors+1, counts.Errors)
+	require.NoError(t, store.MarkMissing(ctx, []uuid.UUID{badID}, time.Now()))
+	counts, err = store.Counts(ctx)
+	require.NoError(t, err)
+	require.Equal(t, before.Errors, counts.Errors)
+	fileErrors, err := store.FileErrors(ctx, "", 200)
+	require.NoError(t, err)
+	for _, item := range fileErrors {
+		require.NotEqual(t, badID, item.ID, "absent files must not remain in read errors")
+	}
+	// Failed analysis jobs retain their place in diagnostics even without a file.
+	root := t.TempDir()
+	scanner := library.NewScanner(store, fakeProber{}, library.NewProgressBoard(), slog.New(slog.DiscardHandler))
+	tracks := map[uuid.UUID]bool{}
+	for _, name := range []string{"Artist - First.flac", "Artist - Second.flac"} {
+		require.NoError(t, os.WriteFile(filepath.Join(root, name), []byte(name), 0o644))
+		fileID, err := scanner.ScanFile(ctx, src, root, name)
+		require.NoError(t, err)
+		var trackID uuid.UUID
+		require.NoError(t, pool.QueryRow(ctx, `SELECT track_id FROM media_files WHERE id = $1`, fileID).Scan(&trackID))
+		tracks[trackID] = true
+		_, err = pool.Exec(ctx, `UPDATE analysis_jobs SET status = 'failed', error = 'audio is shorter than 1 s' WHERE track_id = $1`, trackID)
+		require.NoError(t, err)
+		if name == "Artist - Second.flac" {
+			_, err = pool.Exec(ctx, `DELETE FROM media_files WHERE id = $1`, fileID)
+			require.NoError(t, err)
+		}
+	}
+	var paths, missing int
+	after := uuid.Nil
+	for {
+		page, err := store.AnalysisErrors(ctx, after, 1)
+		require.NoError(t, err)
+		if len(page) == 0 {
+			break
+		}
+		item := page[0]
+		require.NotEqual(t, after, item.TrackID, "pagination must advance")
+		after = item.TrackID
+		if !tracks[item.TrackID] {
+			continue
+		}
+		require.Equal(t, "audio is shorter than 1 s", item.Error)
+		if item.RelPath == nil {
+			missing++
+		} else {
+			paths++
+			require.Equal(t, "Artist - First.flac", *item.RelPath)
+			require.Equal(t, src.ID, *item.SourceID)
+		}
+	}
+	require.Equal(t, 1, paths)
+	require.Equal(t, 1, missing)
+}
+
+func TestScanExcludedFolders(t *testing.T) {
+	pool := connect(t)
+	ctx := context.Background()
+	require.NoError(t, db.Migrate(ctx, pool))
+	store := library.NewStore(pool)
+	src, err := store.SaveSource(ctx, library.Source{ID: uuid.New(), Name: "exclusions", Type: library.SourceLocal, Status: "mounted", TagsFirst: true, NFSOptions: "ro"})
+	require.NoError(t, err)
+	t.Cleanup(func() {
+		require.NoError(t, store.DeleteSource(ctx, src.ID))
+		require.NoError(t, store.CleanupOrphans(ctx))
+	})
+	root := t.TempDir()
+	for _, rel := range []string{"Downloads_PumpEars/Artist - Loop.wav", "Downloads_PumpEars/nested/Artist - Hit.wav", "Downloads_PumpEars-copy/Artist - Song.flac"} {
+		p := filepath.Join(root, filepath.FromSlash(rel))
+		require.NoError(t, os.MkdirAll(filepath.Dir(p), 0o755))
+		require.NoError(t, os.WriteFile(p, []byte(rel), 0o644))
+	}
+	board := library.NewProgressBoard()
+	scanner := library.NewScanner(store, fakeProber{}, board, slog.New(slog.DiscardHandler))
+	scan := func() library.Progress {
+		require.NoError(t, scanner.Start(src, root, true))
+		require.Eventually(t, func() bool { p, ok := board.Get(src.ID); return ok && !p.Running }, 10*time.Second, 10*time.Millisecond)
+		p, _ := board.Get(src.ID)
+		require.Empty(t, p.Error)
+		return p
+	}
+	require.Equal(t, 3, scan().Found)
+	_, err = pool.Exec(ctx, `UPDATE analysis_jobs SET status = 'failed', error = 'too short' WHERE track_id IN (SELECT track_id FROM media_files WHERE source_id = $1)`, src.ID)
+	require.NoError(t, err)
+	before, err := store.AnalysisCounts(ctx)
+	require.NoError(t, err)
+	src.ExcludedDirs = []string{"Downloads_PumpEars"}
+	src, err = store.SaveSource(ctx, src)
+	require.NoError(t, err)
+	saved, err := store.GetSource(ctx, src.ID)
+	require.NoError(t, err)
+	require.Equal(t, src.ExcludedDirs, saved.ExcludedDirs)
+	counts, err := store.AnalysisCounts(ctx)
+	require.NoError(t, err)
+	require.Equal(t, before.Failed-2, counts.Failed, "old failed jobs from excluded folders disappear immediately")
+	_, err = store.RetryFailedAnalysis(ctx)
+	require.NoError(t, err)
+	var failed int
+	require.NoError(t, pool.QueryRow(ctx, `SELECT count(*) FROM analysis_jobs WHERE status = 'failed' AND track_id IN (SELECT track_id FROM media_files WHERE source_id = $1)`, src.ID).Scan(&failed))
+	require.Equal(t, 2, failed, "retry must not requeue excluded jobs")
+	p := scan()
+	require.Equal(t, 1, p.Found)
+	require.Equal(t, 1, p.ToProcess)
+	require.Zero(t, p.Missing)
+	files, err := store.Files(ctx, src.ID)
+	require.NoError(t, err)
+	require.Len(t, files, 3, "excluded records must be preserved")
+	for _, f := range files {
+		require.False(t, f.Missing, "excluded files must not be treated as absent")
+	}
+	// Literal matching must not treat % and _ as SQL wildcards.
+	for _, test := range []struct {
+		path     string
+		excluded bool
+	}{{"100%_loops/a.wav", true}, {"100xxloops/a.wav", false}, {"100%_loops-copy/a.wav", false}} {
+		var excluded bool
+		require.NoError(t, pool.QueryRow(ctx, `SELECT library_path_excluded($1, ARRAY['100%_loops'])`, test.path).Scan(&excluded))
+		require.Equal(t, test.excluded, excluded)
+	}
+	src.ExcludedDirs = []string{}
+	src, err = store.SaveSource(ctx, src)
+	require.NoError(t, err)
+	require.Equal(t, 3, scan().Found, "clearing exclusions makes the subtree eligible again")
+}

services/api/internal/library/analysis_errors_test.go

@@ -0,0 +1,60 @@
+package library
+
+import (
+	"context"
+	"encoding/base64"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+
+	"pipu/api/internal/api/gen"
+	"pipu/api/internal/auth"
+)
+
+type analysisErrorStore struct {
+	SourceStore
+	rows  []AnalysisError
+	after uuid.UUID
+	limit int
+}
+
+func (s *analysisErrorStore) AnalysisErrors(_ context.Context, after uuid.UUID, limit int) ([]AnalysisError, error) {
+	s.after, s.limit = after, limit
+	return s.rows, nil
+}
+
+func TestAnalysisErrorsPermissionsAndPagination(t *testing.T) {
+	first, second := uuid.New(), uuid.New()
+	store := &analysisErrorStore{rows: []AnalysisError{{TrackID: first, Title: "One"}, {TrackID: second, Title: "Two"}}}
+	h := &Handler{svc: &Service{SourceService: &SourceService{store: store}}}
+	limit := 1
+	req := gen.ListAnalysisErrorsRequestObject{Params: gen.ListAnalysisErrorsParams{Limit: &limit}}
+	for _, role := range []auth.Role{auth.RoleUser, auth.RoleModerator} {
+		_, err := h.ListAnalysisErrors(auth.WithPrincipal(context.Background(), auth.Principal{Role: role}), req)
+		require.Error(t, err)
+		require.Zero(t, store.limit, "unauthorized requests must not reach the store")
+	}
+	_, err := h.ListAnalysisErrors(context.Background(), req)
+	require.Error(t, err)
+	ctx := auth.WithPrincipal(context.Background(), auth.Principal{Role: auth.RoleAdmin})
+	resp, err := h.ListAnalysisErrors(ctx, req)
+	require.NoError(t, err)
+	page := resp.(gen.ListAnalysisErrors200JSONResponse)
+	require.Len(t, page.Items, 1)
+	require.Equal(t, first, page.Items[0].TrackId)
+	require.Nil(t, page.Items[0].RelPath, "a missing file must not hide the failed job")
+	require.Equal(t, 2, store.limit)
+	require.NotNil(t, page.NextCursor)
+	store.rows = store.rows[1:]
+	req.Params.Cursor = page.NextCursor
+	resp, err = h.ListAnalysisErrors(ctx, req)
+	require.NoError(t, err)
+	require.Equal(t, first, store.after)
+	require.Nil(t, resp.(gen.ListAnalysisErrors200JSONResponse).NextCursor)
+	for _, cursor := range []string{"!invalid", base64.RawURLEncoding.EncodeToString([]byte("not-a-uuid"))} {
+		req.Params.Cursor = &cursor
+		_, err = h.ListAnalysisErrors(ctx, req)
+		require.Error(t, err)
+	}
+}

services/api/internal/library/exclusions.go

@@ -0,0 +1,50 @@
+package library
+
+import (
+	"path"
+	"strings"
+	"unicode/utf8"
+
+	"pipu/api/internal/platform/apperr"
+)
+
+// normalizeExcludedDirs accepts literal paths relative to the storage root, not globs.
+func normalizeExcludedDirs(dirs []string) ([]string, error) {
+	invalid := func() ([]string, error) {
+		return nil, apperr.Validation("excluded_dirs", "validation.excluded_dirs_invalid", "use up to 100 relative folder paths without .., one per entry", nil)
+	}
+	if len(dirs) > 100 {
+		return invalid()
+	}
+	out := []string{}
+	seen := map[string]bool{}
+	for _, dir := range dirs {
+		dir = strings.ReplaceAll(strings.TrimSpace(dir), "\\", "/")
+		if dir == "" || strings.HasPrefix(dir, "/") || strings.ContainsAny(dir, "\x00\r\n") || utf8.RuneCountInString(dir) > 1000 || (len(dir) > 1 && dir[1] == ':') {
+			return invalid()
+		}
+		for _, part := range strings.Split(dir, "/") {
+			if part == ".." {
+				return invalid()
+			}
+		}
+		dir = path.Clean(dir)
+		if dir == "." {
+			return invalid()
+		}
+		if !seen[dir] {
+			out = append(out, dir)
+			seen[dir] = true
+		}
+	}
+	return out, nil
+}
+
+func pathExcluded(rel string, dirs []string) bool {
+	for _, dir := range dirs {
+		if rel == dir || strings.HasPrefix(rel, dir+"/") {
+			return true
+		}
+	}
+	return false
+}

services/api/internal/library/exclusions_test.go

@@ -0,0 +1,85 @@
+package library
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+
+	"pipu/api/internal/auth"
+)
+
+func TestNormalizeExcludedDirs(t *testing.T) {
+	dirs, err := normalizeExcludedDirs([]string{" Downloads_PumpEars/ ", `Artist\Samples`, "Downloads_PumpEars", "Artist/./Samples", "100%_loops"})
+	require.NoError(t, err)
+	require.Equal(t, []string{"Downloads_PumpEars", "Artist/Samples", "100%_loops"}, dirs)
+	for _, invalid := range []string{"", ".", "./", "/etc", "../outside", "album/../samples", `C:\Downloads`, `\\server\share`, "folder\nother", strings.Repeat("a", 1001)} {
+		t.Run(invalid, func(t *testing.T) {
+			_, err := normalizeExcludedDirs([]string{invalid})
+			require.Error(t, err)
+		})
+	}
+	_, err = normalizeExcludedDirs(make([]string, 101))
+	require.Error(t, err)
+	dirs, err = normalizeExcludedDirs(nil)
+	require.NoError(t, err)
+	require.Empty(t, dirs)
+}
+
+func TestWalkPrunesExcludedSubtrees(t *testing.T) {
+	root := t.TempDir()
+	for _, rel := range []string{"Downloads_PumpEars/sample.wav", "Downloads_PumpEars/nested/sample.wav", "Downloads_PumpEars-copy/song.flac", "Artist/Downloads_PumpEars/song.flac", "Artist/Samples/loop.wav", "Artist/Album/song.flac", "100%_loops/loop.wav", "100xxloops/song.flac"} {
+		p := filepath.Join(root, filepath.FromSlash(rel))
+		require.NoError(t, os.MkdirAll(filepath.Dir(p), 0o755))
+		require.NoError(t, os.WriteFile(p, []byte("audio"), 0o644))
+	}
+	dirs := []string{"Downloads_PumpEars", "Artist/Samples", "100%_loops"}
+	var visited []string
+	found, err := walk(root, dirs, func(string) bool { return false }, func(_, _ int, current string) { visited = append(visited, current) })
+	require.NoError(t, err)
+	require.ElementsMatch(t, []string{"Downloads_PumpEars-copy/song.flac", "Artist/Downloads_PumpEars/song.flac", "Artist/Album/song.flac", "100xxloops/song.flac"}, rels(found))
+	for _, dir := range visited {
+		require.False(t, pathExcluded(dir, dirs), "excluded directories must not be visited")
+	}
+	// A point scan must reject an excluded path before touching storage or the filesystem.
+	_, err = (&Scanner{}).ScanFile(context.Background(), Source{ExcludedDirs: dirs}, root, "Downloads_PumpEars/sample.wav")
+	require.ErrorContains(t, err, "excluded scan folder")
+}
+
+type exclusionsSourceStore struct {
+	SourceStore
+	source Source
+}
+
+func (s *exclusionsSourceStore) GetSource(context.Context, uuid.UUID) (Source, error) {
+	return s.source, nil
+}
+func (s *exclusionsSourceStore) SaveSource(_ context.Context, src Source) (Source, error) {
+	s.source = src
+	return src, nil
+}
+
+func TestExcludedDirsPatchPreservesOmittedAndAllowsClearing(t *testing.T) {
+	id := uuid.New()
+	store := &exclusionsSourceStore{source: Source{ID: id, Name: "Base", Type: SourceLocal, Status: "mounted", ExcludedDirs: []string{"Downloads"}}}
+	board := NewProgressBoard()
+	svc := &SourceService{store: store, board: board}
+	ctx := auth.WithPrincipal(context.Background(), auth.Principal{Role: auth.RoleAdmin})
+	_, err := svc.UpdateSource(ctx, id, SourceInput{})
+	require.NoError(t, err)
+	require.Equal(t, []string{"Downloads"}, store.source.ExcludedDirs)
+	empty := []string{}
+	_, err = svc.UpdateSource(ctx, id, SourceInput{ExcludedDirs: &empty})
+	require.NoError(t, err)
+	require.Empty(t, store.source.ExcludedDirs)
+	board.start(id, false, time.Now())
+	dirs := []string{"Downloads_PumpEars"}
+	_, err = svc.UpdateSource(ctx, id, SourceInput{ExcludedDirs: &dirs})
+	require.Error(t, err)
+	require.Empty(t, store.source.ExcludedDirs, "a running scan must not race with exclusions changes")
+}

services/api/internal/library/handler.go

@@ -11,6 +11,8 @@ import (
 	"os"
 	"time"
 
+	"github.com/google/uuid"
+
 	"pipu/api/internal/api/gen"
 	"pipu/api/internal/library/meta"
 	"pipu/api/internal/platform/apperr"
@@ -59,11 +61,15 @@ func (d DTO) Tracks(ctx context.Context, rows []TrackRow) ([]gen.Track, error) {
 }
 
 func (h *Handler) sourceDTO(s Source) gen.Source {
+	if s.ExcludedDirs == nil {
+		s.ExcludedDirs = []string{}
+	}
 	out := gen.Source{
 		Id: s.ID, Name: s.Name, Type: gen.SourceType(s.Type), NfsServer: s.NFSServer, NfsExport: s.NFSExport,
 		NfsOptions: s.NFSOptions, LocalPath: s.LocalPath, TagPriority: gen.TagsFirst,
 		Status: gen.SourceStatus(s.Status), StatusMessage: s.StatusMessage, LastScanAt: s.LastScanAt,
 		CreatedAt: s.CreatedAt, AcceptsUploads: s.AcceptsUploads, WriteTemplate: s.WriteTemplate,
+		ExcludedDirs: &s.ExcludedDirs,
 	}
 	if !s.TagsFirst {
 		out.TagPriority = gen.PathFirst
@@ -80,7 +86,9 @@ func (h *Handler) sourceDTO(s Source) gen.Source {
 }
 
 func progressDTO(p Progress) gen.ScanProgress {
+	phase := gen.ScanProgressPhase(p.Phase)
 	out := gen.ScanProgress{
+		Phase: &phase, WalkedDirs: &p.WalkedDirs, CurrentDir: &p.CurrentDir,
 		Running: p.Running, Full: p.Full, StartedAt: p.StartedAt, FinishedAt: p.FinishedAt, Found: p.Found,
 		ToProcess: p.ToProcess, Processed: p.Processed, Added: p.Added, Updated: p.Updated, Moved: p.Moved,
 		Missing: p.Missing, Errors: p.Errors,
@@ -118,7 +126,7 @@ func (h *Handler) CreateSource(ctx context.Context, req gen.CreateSourceRequestO
 	src, err := h.svc.CreateSource(ctx, SourceInput{
 		Name: &b.Name, Type: SourceType(b.Type), NFSServer: b.NfsServer, NFSExport: b.NfsExport, NFSOptions: b.NfsOptions,
 		LocalPath: b.LocalPath, TagsFirst: tagsFirst(b.TagPriority), ScanIntervalMinutes: b.ScanIntervalMinutes,
-		AcceptsUploads: b.AcceptsUploads, WriteTemplate: b.WriteTemplate,
+		AcceptsUploads: b.AcceptsUploads, WriteTemplate: b.WriteTemplate, ExcludedDirs: b.ExcludedDirs,
 	})
 	if err != nil {
 		return nil, err
@@ -141,7 +149,7 @@ func (h *Handler) UpdateSource(ctx context.Context, req gen.UpdateSourceRequestO
 	src, err := h.svc.UpdateSource(ctx, req.Id, SourceInput{
 		Name: b.Name, NFSServer: b.NfsServer, NFSExport: b.NfsExport, NFSOptions: b.NfsOptions, LocalPath: b.LocalPath,
 		TagsFirst: tagsFirst(b.TagPriority), ScanIntervalMinutes: b.ScanIntervalMinutes, Enabled: b.Enabled,
-		AcceptsUploads: b.AcceptsUploads, WriteTemplate: b.WriteTemplate,
+		AcceptsUploads: b.AcceptsUploads, WriteTemplate: b.WriteTemplate, ExcludedDirs: b.ExcludedDirs,
 	})
 	if err != nil {
 		return nil, err
@@ -365,6 +373,38 @@ func (h *Handler) ListLibraryErrors(ctx context.Context, req gen.ListLibraryErro
 	return out, nil
 }
 
+// ListAnalysisErrors implements the paginated analysis diagnostics endpoint.
+func (h *Handler) ListAnalysisErrors(ctx context.Context, req gen.ListAnalysisErrorsRequestObject) (gen.ListAnalysisErrorsResponseObject, error) {
+	limit := 50
+	if req.Params.Limit != nil {
+		limit = min(max(*req.Params.Limit, 1), 200)
+	}
+	after := uuid.Nil
+	if req.Params.Cursor != nil {
+		raw, err := base64.RawURLEncoding.DecodeString(*req.Params.Cursor)
+		if err == nil {
+			after, err = uuid.Parse(string(raw))
+		}
+		if err != nil {
+			return nil, apperr.Validation("cursor", "validation.cursor_invalid", "malformed cursor", nil)
+		}
+	}
+	rows, err := h.svc.AnalysisErrors(ctx, after, limit+1)
+	if err != nil {
+		return nil, err
+	}
+	out := gen.ListAnalysisErrors200JSONResponse{Items: []gen.AnalysisError{}}
+	if len(rows) > limit {
+		rows = rows[:limit]
+		next := base64.RawURLEncoding.EncodeToString([]byte(rows[limit-1].TrackID.String()))
+		out.NextCursor = &next
+	}
+	for _, r := range rows {
+		out.Items = append(out.Items, gen.AnalysisError{TrackId: r.TrackID, Title: r.Title, SourceId: r.SourceID, SourceName: r.SourceName, RelPath: r.RelPath, Error: r.Error})
+	}
+	return out, nil
+}
+
 // ListHostDirs реализует gen.StrictServerInterface.
 func (h *Handler) ListHostDirs(ctx context.Context, req gen.ListHostDirsRequestObject) (gen.ListHostDirsResponseObject, error) {
 	rel := ""

services/api/internal/library/scanner.go

@@ -28,6 +28,9 @@ const MissingRetention = 30 * 24 * time.Hour
 
 // Progress — состояние скана одного источника (для админки).
 type Progress struct {
+	Phase      string
+	WalkedDirs int
+	CurrentDir string
 	SourceID   uuid.UUID
 	Running    bool
 	Full       bool
@@ -82,7 +85,7 @@ func (b *ProgressBoard) start(id uuid.UUID, full bool, now time.Time) bool {
 	if p, ok := b.m[id]; ok && p.Running {
 		return false
 	}
-	b.m[id] = &Progress{SourceID: id, Running: true, Full: full, StartedAt: now}
+	b.m[id] = &Progress{SourceID: id, Running: true, Full: full, StartedAt: now, Phase: "walking"}
 	return true
 }
 
@@ -202,14 +205,24 @@ func (sc *Scanner) run(ctx context.Context, src Source, root string, full bool)
 	if err != nil {
 		return err
 	}
-	found, err := walk(root, func(rel string) bool { return meta.MatchPath(patterns, rel).Skip })
+	// Excluded files keep their catalog rows and are not treated as missing or rename candidates.
+	for rel := range existing {
+		if pathExcluded(rel, src.ExcludedDirs) {
+			delete(existing, rel)
+		}
+	}
+	found, err := walk(root, src.ExcludedDirs, func(rel string) bool { return meta.MatchPath(patterns, rel).Skip }, func(found, dirs int, currentDir string) {
+		sc.board.update(src.ID, func(p *Progress) {
+			p.Found, p.WalkedDirs, p.CurrentDir = found, dirs, currentDir
+		})
+	})
 	if err != nil {
 		return err
 	}
 	if len(found) == 0 && hasPresent(existing) {
 		return ErrSourceEmpty
 	}
-	sc.board.update(src.ID, func(p *Progress) { p.Found = len(found) })
+	sc.board.update(src.ID, func(p *Progress) { p.Found, p.Phase = len(found), "preparing" })
 
 	var (
 		jobs     []job
@@ -256,11 +269,12 @@ func (sc *Scanner) run(ctx context.Context, src Source, root string, full bool)
 	for _, w := range rest {
 		jobs = append(jobs, job{walked: w})
 	}
-	sc.board.update(src.ID, func(p *Progress) { p.ToProcess, p.Moved = len(jobs), len(moves) })
+	sc.board.update(src.ID, func(p *Progress) { p.ToProcess, p.Moved, p.Phase = len(jobs), len(moves), "processing" })
 
 	if err := sc.process(ctx, src, root, patterns, jobs); err != nil {
 		return err
 	}
+	sc.board.update(src.ID, func(p *Progress) { p.Phase = "finalizing" })
 
 	var goneIDs []uuid.UUID
 	affected := map[uuid.UUID]bool{}
@@ -291,6 +305,9 @@ func (sc *Scanner) run(ctx context.Context, src Source, root string, full bool)
 // ScanFile — точечный скан одного файла (scan_path): после импорта из очереди трек сразу появляется в каталоге.
 // Возвращает id записи media_files. Хуки AfterScan (обложки, поиск, отпечатки) вызывает сам.
 func (sc *Scanner) ScanFile(ctx context.Context, src Source, root, rel string) (uuid.UUID, error) {
+	if pathExcluded(filepath.ToSlash(rel), src.ExcludedDirs) {
+		return uuid.Nil, fmt.Errorf("library: file is in an excluded scan folder: %s", rel)
+	}
 	rows, err := sc.store.Patterns(ctx, src.ID)
 	if err != nil {
 		return uuid.Nil, err
@@ -462,11 +479,12 @@ func (sc *Scanner) apply(ctx context.Context, src Source, patterns []meta.Patter
 
 // walk обходит дерево источника и возвращает аудиофайлы. Скрытые файлы и каталоги пропускаются;
 // skip — пути, которые шаблоны велят игнорировать. Ошибки отдельных каталогов не прерывают обход.
-func walk(root string, skip func(rel string) bool) ([]walked, error) {
+func walk(root string, excludedDirs []string, skip func(rel string) bool, report func(found, dirs int, currentDir string)) ([]walked, error) {
 	if _, err := os.Stat(root); err != nil {
 		return nil, fmt.Errorf("library: source root: %w", err)
 	}
 	var out []walked
+	dirs := 0
 	err := filepath.WalkDir(root, func(p string, d fs.DirEntry, err error) error {
 		if err != nil {
 			if p == root {
@@ -481,14 +499,27 @@ func walk(root string, skip func(rel string) bool) ([]walked, error) {
 			}
 			return nil
 		}
-		if d.IsDir() || !IsAudio(name) {
-			return nil
-		}
 		rel, err := filepath.Rel(root, p)
 		if err != nil {
 			return nil
 		}
 		rel = filepath.ToSlash(rel)
+		if pathExcluded(rel, excludedDirs) {
+			if d.IsDir() {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+		if d.IsDir() {
+			dirs++
+			if report != nil {
+				report(len(out), dirs, rel)
+			}
+			return nil
+		}
+		if !IsAudio(name) {
+			return nil
+		}
 		if skip(rel) {
 			return nil
 		}
@@ -498,6 +529,9 @@ func walk(root string, skip func(rel string) bool) ([]walked, error) {
 		}
 		// PostgreSQL хранит время с точностью до микросекунд.
 		out = append(out, walked{rel: rel, size: info.Size(), mtime: info.ModTime().UTC().Truncate(time.Microsecond)})
+		if report != nil {
+			report(len(out), dirs, filepath.ToSlash(filepath.Dir(rel)))
+		}
 		return nil
 	})
 	if err != nil {

services/api/internal/library/scanner_test.go

@@ -55,7 +55,7 @@ func TestWalkAndHash(t *testing.T) {
 	write("_incoming/new.mp3", 10)
 	write("big.mp3", 3<<20)
 
-	found, err := walk(root, func(rel string) bool { return rel == "_incoming/new.mp3" })
+	found, err := walk(root, nil, func(rel string) bool { return rel == "_incoming/new.mp3" }, nil)
 	require.NoError(t, err)
 	assert.ElementsMatch(t, []string{"Artist/Album/01 - Song.FLAC", "big.mp3"}, rels(found))
 	for _, w := range found {
@@ -69,10 +69,42 @@ func TestWalkAndHash(t *testing.T) {
 	require.NoError(t, err)
 	assert.Equal(t, h1, h2, "hash survives a rename")
 
-	_, err = walk(filepath.Join(root, "nope"), func(string) bool { return false })
+	_, err = walk(filepath.Join(root, "nope"), nil, func(string) bool { return false }, nil)
 	assert.Error(t, err)
 }
 
+func TestWalkReportsIncrementalProgress(t *testing.T) {
+	root := t.TempDir()
+	for _, dir := range []string{"a-empty", "b-album", ".hidden"} {
+		require.NoError(t, os.MkdirAll(filepath.Join(root, dir), 0o755))
+	}
+	for _, rel := range []string{"b-album/1.mp3", "b-album/2.flac", "b-album/skip.mp3", ".hidden/3.mp3"} {
+		require.NoError(t, os.WriteFile(filepath.Join(root, filepath.FromSlash(rel)), []byte("audio"), 0o644))
+	}
+	var counts, folders []int
+	var paths []string
+	found, err := walk(root, nil, func(rel string) bool { return rel == "b-album/skip.mp3" }, func(n, dirs int, path string) {
+		counts, folders, paths = append(counts, n), append(folders, dirs), append(paths, path)
+	})
+	require.NoError(t, err)
+	require.Len(t, found, 2)
+	assert.Equal(t, []int{0, 0, 0, 1, 2}, counts, "reports activity before any file is found and after each accepted audio file")
+	assert.Equal(t, []int{1, 2, 3, 3, 3}, folders)
+	assert.Equal(t, []string{".", "a-empty", "b-album", "b-album", "b-album"}, paths)
+}
+
+func TestProgressDTOIncludesWalkActivity(t *testing.T) {
+	p := Progress{Phase: "walking", Running: true, Found: 7, WalkedDirs: 4, CurrentDir: "Artist/Album"}
+	dto := progressDTO(p)
+	require.NotNil(t, dto.Phase)
+	assert.Equal(t, "walking", string(*dto.Phase))
+	assert.Equal(t, p.Found, dto.Found)
+	require.NotNil(t, dto.WalkedDirs)
+	assert.Equal(t, p.WalkedDirs, *dto.WalkedDirs)
+	require.NotNil(t, dto.CurrentDir)
+	assert.Equal(t, p.CurrentDir, *dto.CurrentDir)
+}
+
 func TestParseFFprobe(t *testing.T) {
 	raw := []byte(`{
 	  "streams": [

services/api/internal/library/sources.go

@@ -33,6 +33,7 @@ type SourceStore interface {
 	AnalysisCounts(context.Context) (AnalysisCounts, error)
 	WaveMetrics(context.Context) (WaveMetrics, error)
 	FileErrors(context.Context, string, int) ([]FileError, error)
+	AnalysisErrors(context.Context, uuid.UUID, int) ([]AnalysisError, error)
 }
 
 // SourceService owns source configuration, connectivity and diagnostics.
@@ -104,9 +105,17 @@ type SourceInput struct {
 	Enabled             *bool
 	AcceptsUploads      *bool
 	WriteTemplate       *string // "" — убрать
+	ExcludedDirs        *[]string
 }
 
 func (s *SourceService) apply(src *Source, in SourceInput) error {
+	if in.ExcludedDirs != nil {
+		dirs, err := normalizeExcludedDirs(*in.ExcludedDirs)
+		if err != nil {
+			return err
+		}
+		src.ExcludedDirs = dirs
+	}
 	if in.Name != nil {
 		name := strings.TrimSpace(*in.Name)
 		if name == "" || utf8.RuneCountInString(name) > 100 {
@@ -227,6 +236,11 @@ func (s *SourceService) UpdateSource(ctx context.Context, id uuid.UUID, in Sourc
 	if err := s.apply(&src, in); err != nil {
 		return Source{}, err
 	}
+	if !slices.Equal(before.ExcludedDirs, src.ExcludedDirs) && s.board != nil {
+		if progress, ok := s.board.Get(id); ok && progress.Running {
+			return Source{}, apperr.Conflict(CodeScanRunning, "wait for the running scan before changing excluded folders")
+		}
+	}
 	if src, err = s.store.SaveSource(ctx, src); err != nil {
 		return Source{}, err
 	}
@@ -386,6 +400,16 @@ func (s *SourceService) testRead(ctx context.Context, src Source) (TestResult, e
 		if err != nil {
 			return err
 		}
+		rel, err := filepath.Rel(root, p)
+		if err != nil {
+			return err
+		}
+		if pathExcluded(filepath.ToSlash(rel), src.ExcludedDirs) {
+			if d.IsDir() {
+				return filepath.SkipDir
+			}
+			return nil
+		}
 		if !d.IsDir() && IsAudio(d.Name()) {
 			n++
 			if n >= 1000 {
@@ -440,6 +464,14 @@ func (s *SourceService) FileErrors(ctx context.Context, after string, limit int)
 	return s.store.FileErrors(ctx, after, limit)
 }
 
+// AnalysisErrors lists failed analysis jobs for library administrators.
+func (s *SourceService) AnalysisErrors(ctx context.Context, after uuid.UUID, limit int) ([]AnalysisError, error) {
+	if err := requirePerm(ctx, auth.PermManageLibrary); err != nil {
+		return nil, err
+	}
+	return s.store.AnalysisErrors(ctx, after, limit)
+}
+
 // HostDirs — подпапки каталога LIBRARY_HOST для выбора local-хранилища.
 func (s *SourceService) HostDirs(ctx context.Context, rel string) (string, []string, error) {
 	if err := requirePerm(ctx, auth.PermManageLibrary); err != nil {

services/api/internal/library/store.go

@@ -45,6 +45,7 @@ type Source struct {
 	CreatedAt      time.Time
 	AcceptsUploads bool
 	WriteTemplate  *string
+	ExcludedDirs   []string
 }
 
 // PatternRow — шаблон пути источника.
@@ -86,7 +87,7 @@ func newID() uuid.UUID { return uuid.Must(uuid.NewV7()) }
 
 const sourceColumns = `id, name, type, nfs_server, nfs_export, nfs_options, local_path, tag_priority = 'tags_first',
 	extract(epoch from scan_interval)::bigint, status, status_message, last_scan_at, created_at, accepts_uploads,
-	write_template`
+	write_template, excluded_dirs`
 
 func scanSource(row pgx.Row) (Source, error) {
 	var (
@@ -95,7 +96,7 @@ func scanSource(row pgx.Row) (Source, error) {
 		interval *int64
 	)
 	err := row.Scan(&s.ID, &s.Name, &typ, &s.NFSServer, &s.NFSExport, &s.NFSOptions, &s.LocalPath, &s.TagsFirst,
-		&interval, &s.Status, &s.StatusMessage, &s.LastScanAt, &s.CreatedAt, &s.AcceptsUploads, &s.WriteTemplate)
+		&interval, &s.Status, &s.StatusMessage, &s.LastScanAt, &s.CreatedAt, &s.AcceptsUploads, &s.WriteTemplate, &s.ExcludedDirs)
 	if errors.Is(err, pgx.ErrNoRows) {
 		return Source{}, ErrNotFound
 	}
@@ -150,17 +151,20 @@ func tagPriority(tagsFirst bool) string {
 
 // SaveSource создаёт или полностью обновляет хранилище (кроме статуса и времени скана).
 func (st *Store) SaveSource(ctx context.Context, s Source) (Source, error) {
+	if s.ExcludedDirs == nil {
+		s.ExcludedDirs = []string{}
+	}
 	return scanSource(st.pool.QueryRow(ctx, `
 		INSERT INTO library_sources (id, name, type, nfs_server, nfs_export, nfs_options, local_path, tag_priority,
-			scan_interval, status, status_message, accepts_uploads, write_template, created_at)
-		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, make_interval(secs => $9::bigint), $10, $11, $12, $13, now())
+			scan_interval, status, status_message, accepts_uploads, write_template, excluded_dirs, created_at)
+		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, make_interval(secs => $9::bigint), $10, $11, $12, $13, $14, now())
 		ON CONFLICT (id) DO UPDATE SET name = EXCLUDED.name, nfs_server = EXCLUDED.nfs_server,
 			nfs_export = EXCLUDED.nfs_export, nfs_options = EXCLUDED.nfs_options, local_path = EXCLUDED.local_path,
 			tag_priority = EXCLUDED.tag_priority, scan_interval = EXCLUDED.scan_interval,
-			accepts_uploads = EXCLUDED.accepts_uploads, write_template = EXCLUDED.write_template
+			accepts_uploads = EXCLUDED.accepts_uploads, write_template = EXCLUDED.write_template, excluded_dirs = EXCLUDED.excluded_dirs
 		RETURNING `+sourceColumns,
 		s.ID, s.Name, string(s.Type), s.NFSServer, s.NFSExport, s.NFSOptions, s.LocalPath, tagPriority(s.TagsFirst),
-		intervalSeconds(s.ScanInterval), s.Status, s.StatusMessage, s.AcceptsUploads, s.WriteTemplate))
+		intervalSeconds(s.ScanInterval), s.Status, s.StatusMessage, s.AcceptsUploads, s.WriteTemplate, s.ExcludedDirs))
 }
 
 // SetSourceStatus обновляет состояние подключения.
@@ -263,7 +267,9 @@ func (st *Store) FileByPath(ctx context.Context, sourceID uuid.UUID, rel string)
 // SampleFiles — случайная выборка путей источника (для предпросмотра шаблонов).
 func (st *Store) SampleFiles(ctx context.Context, sourceID uuid.UUID, n int) ([]string, error) {
 	rows, err := st.pool.Query(ctx, `
-		SELECT rel_path FROM media_files WHERE source_id = $1 AND missing_since IS NULL ORDER BY random() LIMIT $2`,
+		SELECT f.rel_path FROM media_files f JOIN library_sources s ON s.id = f.source_id
+		WHERE f.source_id = $1 AND f.missing_since IS NULL AND NOT library_path_excluded(f.rel_path, s.excluded_dirs)
+		ORDER BY random() LIMIT $2`,
 		sourceID, n)
 	if err != nil {
 		return nil, fmt.Errorf("library: sample files: %w", err)
@@ -342,7 +348,9 @@ func (st *Store) MarkMissing(ctx context.Context, ids []uuid.UUID, at time.Time)
 
 // PurgeMissing удаляет файлы, пропавшие раньше before.
 func (st *Store) PurgeMissing(ctx context.Context, sourceID uuid.UUID, before time.Time) (int64, error) {
-	tag, err := st.pool.Exec(ctx, `DELETE FROM media_files WHERE source_id = $1 AND missing_since < $2`,
+	tag, err := st.pool.Exec(ctx, `DELETE FROM media_files f USING library_sources s
+		WHERE f.source_id = s.id AND f.source_id = $1 AND f.missing_since < $2
+		AND NOT library_path_excluded(f.rel_path, s.excluded_dirs)`,
 		sourceID, before)
 	if err != nil {
 		return 0, fmt.Errorf("library: purge missing: %w", err)
@@ -511,7 +519,8 @@ func (st *Store) Counts(ctx context.Context) (Counts, error) {
 	err := st.pool.QueryRow(ctx, `
 		SELECT (SELECT count(*) FROM artists), (SELECT count(*) FROM albums), (SELECT count(*) FROM tracks),
 			(SELECT count(*) FROM media_files), (SELECT count(*) FROM media_files WHERE missing_since IS NOT NULL),
-			(SELECT count(*) FROM media_files WHERE scan_error IS NOT NULL)`).
+			(SELECT count(*) FROM media_files f JOIN library_sources s ON s.id = f.source_id
+			 WHERE f.scan_error IS NOT NULL AND f.missing_since IS NULL AND NOT library_path_excluded(f.rel_path, s.excluded_dirs))`).
 		Scan(&c.Artists, &c.Albums, &c.Tracks, &c.Files, &c.Missing, &c.Errors)
 	if err != nil {
 		return Counts{}, fmt.Errorf("library: counts: %w", err)
@@ -530,8 +539,9 @@ type FileError struct {
 // FileErrors — страница файлов с ошибками чтения (по пути, после after).
 func (st *Store) FileErrors(ctx context.Context, after string, limit int) ([]FileError, error) {
 	rows, err := st.pool.Query(ctx, `
-		SELECT id, source_id, rel_path, scan_error FROM media_files
-		WHERE scan_error IS NOT NULL AND rel_path > $1 ORDER BY rel_path LIMIT $2`, after, limit)
+		SELECT f.id, f.source_id, f.rel_path, f.scan_error FROM media_files f JOIN library_sources s ON s.id = f.source_id
+		WHERE f.scan_error IS NOT NULL AND f.missing_since IS NULL AND NOT library_path_excluded(f.rel_path, s.excluded_dirs)
+		AND f.rel_path > $1 ORDER BY f.rel_path LIMIT $2`, after, limit)
 	if err != nil {
 		return nil, fmt.Errorf("library: file errors: %w", err)
 	}
@@ -551,7 +561,7 @@ func (st *Store) AlbumsWithoutCover(ctx context.Context, limit int) ([]CoverCand
 			SELECT mf.source_id, mf.rel_path FROM tracks t
 			JOIN media_files mf ON mf.id = t.primary_file_id
 			JOIN library_sources s ON s.id = mf.source_id AND s.status = 'mounted'
-			WHERE t.album_id = al.id
+			WHERE t.album_id = al.id AND NOT library_path_excluded(mf.rel_path, s.excluded_dirs)
 			ORDER BY t.disc_no NULLS FIRST, t.track_no NULLS LAST
 			LIMIT 1) f
 		WHERE al.cover_checked_at IS NULL
@@ -612,23 +622,56 @@ type AnalysisCounts struct {
 func (st *Store) AnalysisCounts(ctx context.Context) (AnalysisCounts, error) {
 	var c AnalysisCounts
 	err := st.pool.QueryRow(ctx, `
+		WITH jobs AS (SELECT * FROM analysis_jobs WHERE NOT library_track_scan_excluded(track_id))
 		SELECT count(*) FILTER (WHERE status = 'queued'), count(*) FILTER (WHERE status = 'running'),
 			count(*) FILTER (WHERE status = 'done'), count(*) FILTER (WHERE status = 'failed'),
 			(SELECT analyzer_ver FROM track_features ORDER BY analyzed_at DESC LIMIT 1),
-			(SELECT error FROM analysis_jobs WHERE status = 'failed' AND error IS NOT NULL
+			(SELECT error FROM jobs WHERE status = 'failed' AND error IS NOT NULL
 			 GROUP BY error ORDER BY count(*) DESC LIMIT 1)
-		FROM analysis_jobs`).Scan(&c.Queued, &c.Running, &c.Done, &c.Failed, &c.AnalyzerVer, &c.TopError)
+		FROM jobs`).Scan(&c.Queued, &c.Running, &c.Done, &c.Failed, &c.AnalyzerVer, &c.TopError)
 	if err != nil {
 		return AnalysisCounts{}, fmt.Errorf("library: analysis counts: %w", err)
 	}
 	return c, nil
 }
 
-// RetryFailedAnalysis возвращает неудавшиеся задачи анализа в очередь с нуля попыток.
+// AnalysisError is a failed analysis job with a known file path, when available.
+type AnalysisError struct {
+	TrackID    uuid.UUID
+	Title      string
+	SourceID   *uuid.UUID
+	SourceName *string
+	RelPath    *string
+	Error      string
+}
+
+// AnalysisErrors includes failed jobs even when their file is no longer available.
+func (st *Store) AnalysisErrors(ctx context.Context, after uuid.UUID, limit int) ([]AnalysisError, error) {
+	rows, err := st.pool.Query(ctx, `
+		SELECT t.id, t.title, f.source_id, s.name, f.rel_path, COALESCE(a.error, '')
+		FROM analysis_jobs a JOIN tracks t ON t.id = a.track_id
+		LEFT JOIN LATERAL (
+			SELECT mf.source_id, mf.rel_path FROM media_files mf JOIN library_sources src ON src.id = mf.source_id
+			WHERE mf.track_id = t.id AND NOT library_path_excluded(mf.rel_path, src.excluded_dirs)
+			ORDER BY (mf.id = t.primary_file_id) DESC NULLS LAST, (mf.missing_since IS NULL) DESC, mf.id
+			LIMIT 1
+		) f ON true
+		LEFT JOIN library_sources s ON s.id = f.source_id
+		WHERE a.status = 'failed' AND NOT library_track_scan_excluded(t.id) AND t.id > $1 ORDER BY t.id LIMIT $2`, after, limit)
+	if err != nil {
+		return nil, fmt.Errorf("library: analysis errors: %w", err)
+	}
+	return pgx.CollectRows(rows, func(r pgx.CollectableRow) (AnalysisError, error) {
+		var e AnalysisError
+		return e, r.Scan(&e.TrackID, &e.Title, &e.SourceID, &e.SourceName, &e.RelPath, &e.Error)
+	})
+}
+
+// RetryFailedAnalysis returns failed jobs to the queue with attempts reset.
 func (st *Store) RetryFailedAnalysis(ctx context.Context) (int, error) {
 	tag, err := st.pool.Exec(ctx, `
 		UPDATE analysis_jobs SET status = 'queued', attempts = 0, error = NULL, updated_at = now()
-		WHERE status = 'failed'`)
+		WHERE status = 'failed' AND NOT library_track_scan_excluded(track_id)`)
 	if err != nil {
 		return 0, fmt.Errorf("library: retry analysis: %w", err)
 	}
@@ -717,6 +760,7 @@ func (st *Store) FilesToFingerprint(ctx context.Context, withFP bool, after uuid
 		FROM media_files mf
 		JOIN library_sources s ON s.id = mf.source_id AND s.status = 'mounted'
 		WHERE mf.missing_since IS NULL AND mf.scan_error IS NULL
+			AND NOT library_path_excluded(mf.rel_path, s.excluded_dirs)
 			AND (mf.sha256 IS NULL OR ($1 AND mf.fingerprinted_at IS NULL)) AND mf.id > $2
 		ORDER BY mf.id
 		LIMIT $3`, withFP, after, limit)
@@ -770,7 +814,8 @@ func (st *Store) TemplateSamples(ctx context.Context, sourceID uuid.UUID, n int)
 		JOIN tracks t ON t.id = mf.track_id
 		JOIN albums al ON al.id = t.album_id
 		JOIN artists aa ON aa.id = al.album_artist_id
-		WHERE mf.source_id = $1 AND mf.missing_since IS NULL
+		JOIN library_sources src ON src.id = mf.source_id
+		WHERE mf.source_id = $1 AND mf.missing_since IS NULL AND NOT library_path_excluded(mf.rel_path, src.excluded_dirs)
 		ORDER BY random() LIMIT $2`, sourceID, n)
 	if err != nil {
 		return nil, fmt.Errorf("library: template samples: %w", err)

services/api/internal/library/templates.go

@@ -116,7 +116,7 @@ func (s *TemplateService) Preview(ctx context.Context, id uuid.UUID, patterns []
 		return nil, 0, err
 	}
 	if len(paths) == 0 {
-		found, err := walk(root, func(string) bool { return false })
+		found, err := walk(root, src.ExcludedDirs, func(string) bool { return false }, nil)
 		if err != nil {
 			return nil, 0, apperr.New(http.StatusConflict, CodeSourceOffline, err.Error())
 		}

services/api/internal/management/handler.go

@@ -0,0 +1,148 @@
+// Package management authorizes server administration and bridges fixed operations
+// to the host worker. The API never receives a Docker socket or executes a shell.
+package management
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+
+	"pipu/api/internal/api/gen"
+	"pipu/api/internal/auth"
+	"pipu/api/internal/buildinfo"
+	"pipu/api/internal/platform/apperr"
+)
+
+type Bridge interface {
+	Call(context.Context, string, string, any, any) error
+}
+
+type Mailbox struct{ Dir string }
+
+func (m Mailbox) Call(ctx context.Context, actor, operation string, body, out any) error {
+	heartbeat, err := os.ReadFile(filepath.Join(m.Dir, "heartbeat"))
+	if err != nil {
+		return apperr.New(503, "management.unavailable", "host agent is not installed or running")
+	}
+	at, err := strconv.ParseFloat(strings.TrimSpace(string(heartbeat)), 64)
+	if err != nil || time.Since(time.Unix(int64(at), 0)) > 60*time.Second {
+		return apperr.New(503, "management.unavailable", "host agent heartbeat expired")
+	}
+	id := uuid.NewString()
+	request := filepath.Join(m.Dir, id+".request.json")
+	response := filepath.Join(m.Dir, id+".response.json")
+	raw, err := json.Marshal(map[string]any{"operation": operation, "actor": actor, "body": body, "created_at": time.Now().Unix()})
+	if err != nil {
+		return err
+	}
+	tmp, err := os.CreateTemp(m.Dir, ".request-*")
+	if err != nil {
+		return err
+	}
+	defer os.Remove(tmp.Name())
+	if _, err = tmp.Write(raw); err != nil {
+		tmp.Close()
+		return err
+	}
+	if err = tmp.Close(); err != nil {
+		return err
+	}
+	if err = os.Rename(tmp.Name(), request); err != nil {
+		return err
+	}
+	defer os.Remove(response)
+	defer os.Remove(request)
+	ctx, cancel := context.WithTimeout(ctx, 40*time.Second)
+	defer cancel()
+	ticker := time.NewTicker(100 * time.Millisecond)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-ctx.Done():
+			return apperr.New(504, "management.timeout", "host agent did not respond; check status before retrying")
+		case <-ticker.C:
+			raw, err := os.ReadFile(response)
+			if errors.Is(err, os.ErrNotExist) {
+				continue
+			}
+			if err != nil {
+				return err
+			}
+			var result struct {
+				Data   json.RawMessage `json:"data"`
+				Code   string          `json:"code"`
+				Status int             `json:"status"`
+			}
+			if err := json.Unmarshal(raw, &result); err != nil {
+				return err
+			}
+			if result.Code != "" {
+				status := result.Status
+				if status < 400 || status > 599 {
+					status = 502
+				}
+				return apperr.New(status, result.Code, "host management operation failed")
+			}
+			return json.Unmarshal(result.Data, out)
+		}
+	}
+}
+
+type Handler struct{ bridge Bridge }
+
+func NewHandler(bridge Bridge) *Handler { return &Handler{bridge: bridge} }
+
+func (h *Handler) call(ctx context.Context, admin bool, operation string, body, out any) error {
+	p, ok := auth.PrincipalFrom(ctx)
+	if !ok {
+		return apperr.Unauthorized(auth.CodeUnauthorized, "authentication required")
+	}
+	if (admin && p.Role != auth.RoleAdmin) || (!admin && !p.Allowed(auth.PermManageUpdates)) {
+		return apperr.Forbidden(auth.CodeForbidden, "server management permission required")
+	}
+	return h.bridge.Call(ctx, p.UserID.String(), operation, body, out)
+}
+
+func (h *Handler) GetServerUpdates(ctx context.Context, req gen.GetServerUpdatesRequestObject) (gen.GetServerUpdatesResponseObject, error) {
+	var out gen.ServerUpdates
+	err := h.call(ctx, false, "updates.get", map[string]any{"source_id": req.Params.SourceId}, &out)
+	out.CurrentVersion = buildinfo.Version
+	return gen.GetServerUpdates200JSONResponse(out), err
+}
+
+func (h *Handler) SaveServerUpdateSources(ctx context.Context, req gen.SaveServerUpdateSourcesRequestObject) (gen.SaveServerUpdateSourcesResponseObject, error) {
+	var out gen.ServerSources
+	err := h.call(ctx, false, "sources.save", req.Body, &out)
+	return gen.SaveServerUpdateSources200JSONResponse(out), err
+}
+
+func (h *Handler) StartServerUpdate(ctx context.Context, req gen.StartServerUpdateRequestObject) (gen.StartServerUpdateResponseObject, error) {
+	var out gen.ServerJob
+	err := h.call(ctx, false, "updates.start", req.Body, &out)
+	return gen.StartServerUpdate202JSONResponse(out), err
+}
+
+func (h *Handler) GetServerConfig(ctx context.Context, _ gen.GetServerConfigRequestObject) (gen.GetServerConfigResponseObject, error) {
+	var out gen.ServerConfig
+	err := h.call(ctx, true, "config.get", nil, &out)
+	return gen.GetServerConfig200JSONResponse(out), err
+}
+
+func (h *Handler) SaveServerConfig(ctx context.Context, req gen.SaveServerConfigRequestObject) (gen.SaveServerConfigResponseObject, error) {
+	var out gen.ServerConfig
+	err := h.call(ctx, true, "config.save", req.Body, &out)
+	return gen.SaveServerConfig200JSONResponse(out), err
+}
+
+func (h *Handler) ApplyServerConfig(ctx context.Context, _ gen.ApplyServerConfigRequestObject) (gen.ApplyServerConfigResponseObject, error) {
+	var out gen.ServerJob
+	err := h.call(ctx, true, "config.apply", nil, &out)
+	return gen.ApplyServerConfig202JSONResponse(out), err
+}

services/api/internal/management/handler_test.go

@@ -0,0 +1,106 @@
+package management_test
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"pipu/api/internal/auth"
+	"pipu/api/internal/management"
+	"pipu/api/internal/server"
+)
+
+type bridge struct{ calls int }
+
+func (b *bridge) Call(_ context.Context, _, _ string, _, out any) error {
+	b.calls++
+	return json.Unmarshal([]byte(`{"sources":[],"versions":[],"current_version":"test","job":null,"source_error":"","entries":[],"revision":"r","restart_required":false}`), out)
+}
+
+func TestServerManagementAuthorization(t *testing.T) {
+	for _, tc := range []struct {
+		name            string
+		principal       auth.Principal
+		updates, config int
+	}{
+		{"user", auth.Principal{Role: auth.RoleUser}, 403, 403},
+		{"moderator", auth.Principal{Role: auth.RoleModerator}, 403, 403},
+		{"delegate", auth.Principal{Role: auth.RoleUser, ManagesUpdates: true}, 200, 403},
+		{"admin", auth.Principal{Role: auth.RoleAdmin}, 200, 200},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bridge{}
+			router := server.NewRouter(server.Deps{Management: management.NewHandler(b)})
+			for _, op := range []struct {
+				method, path, body string
+				want               int
+			}{
+				{"GET", "updates", "", tc.updates},
+				{"POST", "updates", `{"source_id":"origin","channel":"main"}`, tc.updates},
+				{"PUT", "update-sources", `{"sources":[]}`, tc.updates},
+				{"GET", "config", "", tc.config},
+				{"PATCH", "config", `{"revision":"r","values":{}}`, tc.config},
+				{"POST", "config/apply", "", tc.config},
+			} {
+				request := httptest.NewRequest(op.method, "/api/v1/admin/server/"+op.path, strings.NewReader(op.body))
+				request.Header.Set("Content-Type", "application/json")
+				request = request.WithContext(auth.WithPrincipal(request.Context(), tc.principal))
+				rec := httptest.NewRecorder()
+				router.ServeHTTP(rec, request)
+				want := op.want
+				if op.method == "POST" && want == 200 {
+					want = 202
+				}
+				require.Equal(t, want, rec.Code, rec.Body.String())
+			}
+			if tc.updates == 403 && tc.config == 403 {
+				require.Zero(t, b.calls)
+			}
+		})
+	}
+	t.Run("anonymous", func(t *testing.T) {
+		router := server.NewRouter(server.Deps{Management: management.NewHandler(&bridge{})})
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/api/v1/admin/server/config", nil))
+		require.Equal(t, 401, rec.Code)
+	})
+}
+
+func TestMailboxRoundTripAndUnavailable(t *testing.T) {
+	dir := t.TempDir()
+	m := management.Mailbox{Dir: dir}
+	var out map[string]any
+	require.Error(t, m.Call(context.Background(), "actor", "config.get", nil, &out))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "heartbeat"), []byte("1"), 0600))
+	require.Error(t, m.Call(context.Background(), "actor", "config.get", nil, &out))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "heartbeat"), []byte(time.Now().Format("invalid")), 0600))
+	require.Error(t, m.Call(context.Background(), "actor", "config.get", nil, &out))
+	raw, _ := json.Marshal(time.Now().Unix())
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "heartbeat"), raw, 0600))
+	done := make(chan error, 1)
+	go func() { done <- m.Call(context.Background(), "actor", "config.get", nil, &out) }()
+	var requests []string
+	require.Eventually(t, func() bool {
+		requests, _ = filepath.Glob(filepath.Join(dir, "*.request.json"))
+		return len(requests) == 1
+	}, time.Second, 10*time.Millisecond)
+	request, err := os.ReadFile(requests[0])
+	require.NoError(t, err)
+	var payload map[string]any
+	require.NoError(t, json.Unmarshal(request, &payload))
+	require.Equal(t, "config.get", payload["operation"])
+	require.Equal(t, "actor", payload["actor"])
+	response := strings.Replace(requests[0], ".request.json", ".response.json", 1)
+	require.NoError(t, os.WriteFile(response, []byte(`{"data":{"revision":"ok"}}`), 0600))
+	require.NoError(t, <-done)
+	require.Equal(t, "ok", out["revision"])
+	remaining, _ := filepath.Glob(filepath.Join(dir, "*.json"))
+	require.Empty(t, remaining)
+}

services/api/internal/platform/config/config.go

@@ -10,6 +10,7 @@ import (
 
 // API — конфигурация публичного сервиса api.
 type API struct {
+	ManagementDir   string        `env:"MANAGEMENT_DIR" envDefault:"/management"`
 	HTTPAddr        string        `env:"HTTP_ADDR" envDefault:":8080"`
 	DatabaseURL     string        `env:"DATABASE_URL,required"`
 	RedisURL        string        `env:"REDIS_URL,required"`

services/api/internal/server/router.go

@@ -13,6 +13,7 @@ import (
 	"pipu/api/internal/auth"
 	"pipu/api/internal/genius"
 	"pipu/api/internal/library"
+	"pipu/api/internal/management"
 	"pipu/api/internal/platform/httpx"
 	"pipu/api/internal/playback"
 	"pipu/api/internal/search"
@@ -23,10 +24,11 @@ import (
 
 // Deps — модули, реализующие части контракта API.
 type Deps struct {
-	Genius *genius.Handler
-	Log    *slog.Logger
-	System *system.Handler
-	Auth   *auth.Handler
+	Management *management.Handler
+	Genius     *genius.Handler
+	Log        *slog.Logger
+	System     *system.Handler
+	Auth       *auth.Handler
 	// Library — хранилища, сканы и каталог.
 	Library *library.Handler
 	Search  *search.Handler
@@ -46,18 +48,20 @@ type Deps struct {
 // По мере появления модулей (catalog, ...) они встраиваются сюда.
 // Алиасы дают встроенным полям разные имена: у модулей одинаковое имя типа Handler.
 type (
-	geniusHandler   = genius.Handler
-	systemHandler   = system.Handler
-	authHandler     = auth.Handler
-	libraryHandler  = library.Handler
-	searchHandler   = search.Handler
-	playbackHandler = playback.Handler
-	waveHandler     = wave.Handler
-	appHandler      = appupdate.Handler
-	uploadsHandler  = uploads.Handler
+	managementHandler = management.Handler
+	geniusHandler     = genius.Handler
+	systemHandler     = system.Handler
+	authHandler       = auth.Handler
+	libraryHandler    = library.Handler
+	searchHandler     = search.Handler
+	playbackHandler   = playback.Handler
+	waveHandler       = wave.Handler
+	appHandler        = appupdate.Handler
+	uploadsHandler    = uploads.Handler
 )
 
 type handlers struct {
+	*managementHandler
 	*geniusHandler
 	*systemHandler
 	*authHandler
@@ -89,7 +93,7 @@ func NewRouter(d Deps) http.Handler {
 		d.TUS.Mount(r)
 	}
 
-	strict := gen.NewStrictHandlerWithOptions(handlers{geniusHandler: d.Genius, systemHandler: d.System, authHandler: d.Auth, libraryHandler: d.Library, searchHandler: d.Search, playbackHandler: d.Playback, waveHandler: d.Wave, appHandler: d.App, uploadsHandler: d.Uploads},
+	strict := gen.NewStrictHandlerWithOptions(handlers{managementHandler: d.Management, geniusHandler: d.Genius, systemHandler: d.System, authHandler: d.Auth, libraryHandler: d.Library, searchHandler: d.Search, playbackHandler: d.Playback, waveHandler: d.Wave, appHandler: d.App, uploadsHandler: d.Uploads},
 		[]gen.StrictMiddlewareFunc{httpx.StrictRequest}, gen.StrictHTTPServerOptions{
 			RequestErrorHandlerFunc:  httpx.RequestError,
 			ResponseErrorHandlerFunc: httpx.ResponseError(log),

services/api/migrations/00017_scan_excluded_dirs.sql

@@ -0,0 +1,29 @@
+-- +goose Up
+ALTER TABLE library_sources ADD COLUMN excluded_dirs text[] NOT NULL DEFAULT '{}';
+
+-- +goose StatementBegin
+CREATE FUNCTION library_path_excluded(rel_path text, excluded_dirs text[])
+RETURNS boolean LANGUAGE sql IMMUTABLE PARALLEL SAFE AS $$
+  SELECT EXISTS (
+    SELECT 1 FROM unnest(excluded_dirs) AS d(dir)
+    WHERE rel_path = dir OR starts_with(rel_path, dir || '/')
+  );
+$$;
+-- +goose StatementEnd
+
+-- Keep historical jobs and files; only tracks whose every known file is excluded are suppressed.
+-- +goose StatementBegin
+CREATE FUNCTION library_track_scan_excluded(track uuid)
+RETURNS boolean LANGUAGE sql STABLE AS $$
+  SELECT EXISTS (SELECT 1 FROM media_files WHERE track_id = track)
+    AND NOT EXISTS (
+      SELECT 1 FROM media_files f JOIN library_sources s ON s.id = f.source_id
+      WHERE f.track_id = track AND NOT library_path_excluded(f.rel_path, s.excluded_dirs)
+    );
+$$;
+-- +goose StatementEnd
+
+-- +goose Down
+DROP FUNCTION library_track_scan_excluded(uuid);
+DROP FUNCTION library_path_excluded(text, text[]);
+ALTER TABLE library_sources DROP COLUMN excluded_dirs;

services/api/migrations/00018_manage_updates.sql

@@ -0,0 +1,5 @@
+-- +goose Up
+ALTER TABLE users ADD COLUMN manages_updates boolean NOT NULL DEFAULT false;
+
+-- +goose Down
+ALTER TABLE users DROP COLUMN manages_updates;

services/recommender/pipu_rec/analysis/worker.py

@@ -93,9 +93,13 @@ class Worker:
             WHERE j.track_id IN (
                 SELECT a.track_id FROM analysis_jobs a
                 JOIN tracks t ON t.id = a.track_id
-                JOIN media_files f ON f.id = t.primary_file_id
-                JOIN library_sources s ON s.id = f.source_id AND s.status = 'mounted'
                 WHERE a.status = 'queued'
+                  AND EXISTS (
+                    SELECT 1 FROM media_files f JOIN library_sources s ON s.id = f.source_id
+                    WHERE f.track_id = t.id AND s.status = 'mounted'
+                      AND f.missing_since IS NULL AND f.scan_error IS NULL
+                      AND NOT library_path_excluded(f.rel_path, s.excluded_dirs)
+                  )
                 ORDER BY a.updated_at
                 LIMIT %s
                 FOR UPDATE OF a SKIP LOCKED)
@@ -108,10 +112,17 @@ class Worker:
             return []
         files = conn.execute(
             """
-            SELECT t.id::text, s.id::text, s.type::text, s.local_path, f.rel_path
+            SELECT t.id::text, f.source_id::text, f.source_type, f.local_path, f.rel_path
             FROM tracks t
-            JOIN media_files f ON f.id = t.primary_file_id
-            JOIN library_sources s ON s.id = f.source_id
+            CROSS JOIN LATERAL (
+                SELECT s.id AS source_id, s.type::text AS source_type, s.local_path, mf.rel_path
+                FROM media_files mf JOIN library_sources s ON s.id = mf.source_id
+                WHERE mf.track_id = t.id AND s.status = 'mounted'
+                  AND mf.missing_since IS NULL AND mf.scan_error IS NULL
+                  AND NOT library_path_excluded(mf.rel_path, s.excluded_dirs)
+                ORDER BY (mf.id = t.primary_file_id) DESC NULLS LAST, mf.id
+                LIMIT 1
+            ) f
             WHERE t.id = ANY(%s::uuid[])
             """,
             ([r[0] for r in rows],),

services/recommender/tests/test_db_integration.py

@@ -122,6 +122,37 @@ def test_analysis_worker_saves_features(world: dict[str, Any]) -> None:
         assert row is not None and row[0] == pytest.approx(120.0)
 
 
+def test_analysis_worker_skips_excluded_folders_and_uses_allowed_copy(world: dict[str, Any]) -> None:
+    worker = Worker(DSN, "/library", "/library-host", 1)
+    blocked, alternative, allowed = world["tracks"][:3]
+    with psycopg.connect(DSN, autocommit=True) as conn:
+        source = conn.execute(
+            "SELECT source_id FROM media_files WHERE track_id = %s", (blocked,)
+        ).fetchone()
+        assert source is not None
+        conn.execute(
+            "UPDATE library_sources SET excluded_dirs = ARRAY['Downloads_PumpEars'] WHERE id = %s",
+            (source[0],),
+        )
+        for track, rel in [(blocked, "Downloads_PumpEars/nested/loop.wav"), (alternative, "Downloads_PumpEars/loop.wav"), (allowed, "Downloads_PumpEars-copy/song.flac")]:
+            conn.execute("UPDATE media_files SET rel_path = %s WHERE track_id = %s", (rel, track))
+        conn.execute(
+            "INSERT INTO media_files (id, source_id, rel_path, size_bytes, mtime, format, duration_ms, track_id) "
+            "VALUES (%s, %s, 'Music/allowed-copy.flac', 1, now(), 'flac', 200000, %s)",
+            (uid(), source[0], alternative),
+        )
+        conn.execute(
+            "UPDATE analysis_jobs SET status = 'queued' WHERE track_id = ANY(%s::uuid[])",
+            ([blocked, alternative, allowed],),
+        )
+        jobs = {job.track_id: job.path for job in worker.claim(conn, 10000)}
+        assert blocked not in jobs
+        assert jobs[alternative].replace("\\", "/").endswith("/Music/allowed-copy.flac")
+        assert jobs[allowed].replace("\\", "/").endswith("/Downloads_PumpEars-copy/song.flac")
+        row = conn.execute("SELECT attempts, status FROM analysis_jobs WHERE track_id = %s", (blocked,)).fetchone()
+        assert row == (0, 'queued'), "excluded files must not consume retry attempts"
+
+
 def test_training_and_wave_queries(world: dict[str, Any]) -> None:
     with psycopg.connect(DSN) as conn:
         assert len(load_interactions(conn)) >= 60