chore(codebase): full cleanup pass

backend/Modules/Contents/Features/RemoveAlbum.cs

@@ -33,14 +33,14 @@ public class RemoveAlbumHandler(
         RemoveAlbumRequest request,
         CancellationToken ct)
     {
-        var userId = User.GetUserId();
+        Guid userId = User.GetUserId();
 
-        var album = await context
+        Album? album = await context
             .Albums
             .Include(a => a.Photos)
             .SingleOrDefaultAsync(
                 a => a.Id == request.AlbumId && a.CreatedBy == userId,
-                cancellationToken: ct);
+                ct);
 
         if (album is null)
         {
@@ -53,7 +53,7 @@ public class RemoveAlbumHandler(
         album.DeletedAt = DateTimeOffset.UtcNow;
 
         // Soft delete all photos in the album
-        foreach (var photo in album.Photos)
+        foreach (AlbumPhoto photo in album.Photos)
         {
             photo.DeletedBy = userId;
             photo.DeletedAt = DateTimeOffset.UtcNow;
@@ -63,4 +63,4 @@ public class RemoveAlbumHandler(
 
         await SendNoContentAsync(ct);
     }
-} 
+}