fix: resolve gallery labels from current plans and preserve render snapshots

pigway_frame_flow/api/app.py

@@ -812,6 +812,10 @@ def create_app(settings=None, start_worker=True):
         with service.lock:
             service.libraries.check_source_delete(source_id)
             service.photo_sources.delete(source_id)
+            db.execute(
+                "DELETE FROM library_plans WHERE source_id=? AND archived=1",
+                (source_id,),
+            )
         return Response(status_code=204)
 
     @app.get(