Update config_provider.py

config_provider.py

@@ -173,6 +173,9 @@ class ConfigProvider:
         """Thread-safe configuration save with optimistic locking"""
         with cls._file_lock:
             try:
+                # Convert to dict for JSON serialization
+                config_dict = config.model_dump()
+                
                 # Load current config for race condition check
                 try:
                     current_config = cls._load()