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.Api/Endpoints/DownloadsEndpoints.cs

@@ -0,0 +1,52 @@
+using LiteCqrs;
+using TeleWave.Api.Common;
+using TeleWave.Application.Common.Interfaces;
+using TeleWave.Application.Media.Downloads;
+using TeleWave.Application.Media.Register;
+using TeleWave.Domain.Media;
+using TeleWave.Infrastructure.Identity;
+
+namespace TeleWave.Api.Endpoints;
+
+public static class DownloadsEndpoints
+{
+    public static IEndpointRouteBuilder MapDownloadsEndpoints(this IEndpointRouteBuilder app)
+    {
+        var admin = app.MapGroup("/api/admin/downloads")
+            .WithTags("Admin.Downloads")
+            .RequireAuthorization(policy => policy.RequireRole(RoleNames.Admin));
+
+        admin.MapGet("", List).Produces<IReadOnlyList<DownloadFileDto>>();
+        admin.MapPost("/import", Import).Produces<CreatedIdResponse>(StatusCodes.Status201Created);
+
+        return app;
+    }
+
+    private static async Task<IResult> List(ISender sender, CancellationToken cancellationToken)
+    {
+        var result = await sender.Send(new ListDownloadsQuery(), cancellationToken);
+        return Results.Ok(result);
+    }
+
+    /// <summary>Импорт выбранного файла из downloads/: регистрирует ассет (копией) и ставит в обработку.</summary>
+    private static async Task<IResult> Import(
+        ImportDownloadBody body,
+        ISender sender,
+        IMediaProcessingQueue queue,
+        CancellationToken cancellationToken
+    )
+    {
+        var fileName = Path.GetFileName(body.RelativePath);
+        var result = await sender.Send(
+            new RegisterMediaAssetCommand(body.RelativePath, MediaSource.Download, fileName),
+            cancellationToken
+        );
+        if (!result.IsSuccess)
+            return result.ToHttpResult();
+
+        queue.Enqueue(result.Value);
+        return Results.Created($"/api/admin/media/{result.Value}", new CreatedIdResponse(result.Value));
+    }
+}
+
+public sealed record ImportDownloadBody(string RelativePath);

backend/src/TeleWave.Api/Program.cs

@@ -113,6 +113,7 @@ app.MapAuthEndpoints();
 app.MapRoleEndpoints();
 app.MapAdminUserEndpoints();
 app.MapMediaEndpoints();
+app.MapDownloadsEndpoints();
 app.MapShowEndpoints();
 app.MapChannelEndpoints();
 app.MapStreamingEndpoints();