Add torrent client integration and downloads management: introduce qbittorrent service in Docker setup, implement downloads endpoint in API, and enhance media storage to handle imported files. Update frontend routes and translations for downloads management.

backend/src/TeleWave.Infrastructure/Media/MediaPathResolver.cs

@@ -17,12 +17,14 @@ public sealed class MediaPathResolver
         UploadsDir = Path.Combine(_root, "uploads");
         OriginalsDir = Path.Combine(_root, "originals");
         AssetsDir = Path.Combine(_root, "assets");
+        DownloadsDir = Path.Combine(_root, "downloads");
     }
 
     public string InboxDir { get; }
     public string UploadsDir { get; }
     public string OriginalsDir { get; }
     public string AssetsDir { get; }
+    public string DownloadsDir { get; }
 
     public void EnsureDirectories()
     {
@@ -30,6 +32,7 @@ public sealed class MediaPathResolver
         Directory.CreateDirectory(UploadsDir);
         Directory.CreateDirectory(OriginalsDir);
         Directory.CreateDirectory(AssetsDir);
+        Directory.CreateDirectory(DownloadsDir);
     }
 
     public string OriginalPath(Guid assetId, string extension) =>
@@ -55,6 +58,10 @@ public sealed class MediaPathResolver
     public string InboxPath(string fileName) =>
         EnsureWithin(InboxDir, Path.Combine(InboxDir, fileName));
 
+    /// <summary>Резолвит относительный путь внутри downloads/ (может содержать подкаталоги сезона).</summary>
+    public string DownloadPath(string relativePath) =>
+        EnsureWithin(DownloadsDir, Path.Combine(DownloadsDir, relativePath));
+
     private string EnsureWithinRoot(string candidate) => EnsureWithin(_root, candidate);
 
     private static string EnsureWithin(string baseDir, string candidate)