Enhance user and media management with sorting and statistics: add sorting options to user and media listing endpoints, implement media statistics retrieval, and update frontend components for sorting and displaying media processing times. Refactor related query handlers and API types to support new features.

backend/src/TeleWave.Api/Endpoints/MediaEndpoints.cs

@@ -8,6 +8,7 @@ using TeleWave.Application.Media.Delete;
 using TeleWave.Application.Media.GetMedia;
 using TeleWave.Application.Media.ListMedia;
 using TeleWave.Application.Media.Register;
+using TeleWave.Application.Media.Stats;
 using TeleWave.Domain.Media;
 using TeleWave.Infrastructure.Identity;
 using TeleWave.Infrastructure.Media;
@@ -24,6 +25,7 @@ public static class MediaEndpoints
 
         admin.MapPost("", Upload).Produces<UploadMediaResponse>(StatusCodes.Status201Created);
         admin.MapGet("", List).Produces<PagedList<MediaAssetDto>>();
+        admin.MapGet("/stats", Stats).Produces<MediaStatsDto>();
         admin.MapGet("/{id:guid}", Get).Produces<MediaAssetDto>();
         admin.MapDelete("/{id:guid}", Delete).Produces(StatusCodes.Status204NoContent);
 
@@ -100,6 +102,8 @@ public static class MediaEndpoints
         int pageSize,
         MediaAssetStatus[]? status,
         string? search,
+        string? sort,
+        bool desc,
         ISender sender,
         CancellationToken cancellationToken
     )
@@ -109,13 +113,21 @@ public static class MediaEndpoints
                 page <= 0 ? 1 : page,
                 pageSize <= 0 ? 20 : pageSize,
                 status ?? [],
-                search
+                search,
+                sort,
+                desc
             ),
             cancellationToken
         );
         return Results.Ok(result);
     }
 
+    private static async Task<IResult> Stats(ISender sender, CancellationToken cancellationToken)
+    {
+        var result = await sender.Send(new GetMediaStatsQuery(), cancellationToken);
+        return Results.Ok(result);
+    }
+
     private static async Task<IResult> Get(
         Guid id,
         ISender sender,