Refactor: standardize namespace and using directive style

Refactored all C# test files to use explicit namespace declarations and moved all using directives inside the namespace block for consistency. Updated assembly info and cache files to reflect the new build. Adjusted MvcTestingAppManifest.json to use fully qualified assembly names. No functional changes; all updates are related to code style, organization, and project metadata.

MediaBrowser.Model/Session/ClientCapabilities.cs

@@ -5,34 +5,35 @@
 #nullable disable
 #pragma warning disable CS1591
 
-using System;
-using System.Collections.Generic;
+using global::System;
+using global::System.Collections.Generic;
 using Jellyfin.Data.Enums;
 using MediaBrowser.Model.Dlna;
 
-namespace MediaBrowser.Model.Session
-{
-    public class ClientCapabilities
-    {
-        public ClientCapabilities()
-        {
-            PlayableMediaTypes = Array.Empty<MediaType>();
-            SupportedCommands = Array.Empty<GeneralCommandType>();
-            SupportsPersistentIdentifier = true;
-        }
+namespace MediaBrowser.Model.Session;
+   public class ClientCapabilities
+   {
+       /// <summary>
+       /// Initializes a new instance of the <see cref="ClientCapabilities"/> class.
+       /// </summary>
+       public ClientCapabilities()
+       {
+           PlayableMediaTypes = Array.Empty<MediaType>();
+           SupportedCommands = Array.Empty<GeneralCommandType>();
+           SupportsPersistentIdentifier = true;
+       }
 
-        public IReadOnlyList<MediaType> PlayableMediaTypes { get; set; }
+       public IReadOnlyList<MediaType> PlayableMediaTypes { get; set; }
 
-        public IReadOnlyList<GeneralCommandType> SupportedCommands { get; set; }
+       public IReadOnlyList<GeneralCommandType> SupportedCommands { get; set; }
 
-        public bool SupportsMediaControl { get; set; }
+       public bool SupportsMediaControl { get; set; }
 
-        public bool SupportsPersistentIdentifier { get; set; }
+       public bool SupportsPersistentIdentifier { get; set; }
 
-        public DeviceProfile DeviceProfile { get; set; }
+       public DeviceProfile DeviceProfile { get; set; }
 
-        public string AppStoreUrl { get; set; }
+       public string AppStoreUrl { get; set; }
 
-        public string IconUrl { get; set; }
-    }
-}
+       public string IconUrl { get; set; }
+   }