feat(web): align the web UI with the design prototype

- Ambient background in the app shell: three drifting blurred blobs,
  the third one tinted with the current track's cover; can be turned off
  in settings and stays still with reduced motion.
- Island player variant (floating glass panel) next to the bar, chosen
  in settings; player source line ("Album · …", "My Wave"), reactions
  around the transport controls, queue drawer.
- Sidebar: like / dislike counters, pending uploads badge on Queue,
  admin Settings page holding the upload queue limits.
- Collection: header tile with kicker, underline tabs, time / number
  lead column with an equalizer for the current track, album column,
  dimmed dislikes with undo, Play all / Shuffle pills.
- Album: cover-tinted header and Play / Shuffle; artist: artist wave,
  Play and popular tracks (new GET /artists/{id}/top-tracks).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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

@@ -781,6 +781,25 @@ export interface paths {
         patch?: never;
         trace?: never;
     };
+    "/api/v1/artists/{id}/top-tracks": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                id: components["parameters"]["EntityId"];
+            };
+            cookie?: never;
+        };
+        /** Популярные треки исполнителя (по прослушиваниям всех пользователей) */
+        get: operations["listArtistTopTracks"];
+        put?: never;
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
     "/api/v1/albums/{id}": {
         parameters: {
             query?: never;
@@ -3149,6 +3168,31 @@ export interface operations {
             default: components["responses"]["Problem"];
         };
     };
+    listArtistTopTracks: {
+        parameters: {
+            query?: {
+                limit?: number;
+            };
+            header?: never;
+            path: {
+                id: components["parameters"]["EntityId"];
+            };
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description Треки, самые слушаемые первыми */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["TrackList"];
+                };
+            };
+            default: components["responses"]["Problem"];
+        };
+    };
     getAlbum: {
         parameters: {
             query?: never;