Add GC hints to prevent memory leaks from large byte arrays

allstarr/Services/Subsonic/SubsonicProxyService.cs

@@ -39,6 +39,12 @@ public class SubsonicProxyService
         var body = await response.Content.ReadAsByteArrayAsync();
         var contentType = response.Content.Headers.ContentType?.ToString();
         
+        // Trigger GC for large files to prevent memory leaks
+        if (body.Length > 1024 * 1024) // 1MB threshold
+        {
+            GC.Collect(2, GCCollectionMode.Optimized, blocking: false);
+        }
+        
         return (body, contentType);
     }