Fix user provider id checking in chat completions endpoint

aisbf/providers/claude.py

@@ -1649,6 +1649,12 @@ class ClaudeProviderHandler(BaseProviderHandler):
             logging.info("ClaudeProviderHandler: Starting model list retrieval")
             logging.info("=" * 80)
 
+            # First try to load from cache
+            cached_models = self._load_models_cache()
+            if cached_models:
+                logging.info(f"ClaudeProviderHandler: ✓ Returning {len(cached_models)} models from cache")
+                return cached_models
+
             await self.apply_rate_limit()
 
             try:

main.py

@@ -11480,7 +11480,7 @@ async def user_chat_completions_by_username(request: Request, username: str, bod
         token_id = getattr(request.state, 'token_id', None)
         return await handler.handle_rotation_request(actual_model, body_dict, authenticated_user_id, token_id)
     
-    if provider_id == "user-provider" or provider_id in (p['provider_id'] for p in (get_user_handler('request', target_user_id).user_providers.values() if target_user_id else [])):
+    if provider_id == "user-provider" or provider_id in (get_user_handler('request', target_user_id).user_providers.keys() if target_user_id else []):
         # Check if this is a user provider
         handler = get_user_handler('request', target_user_id)
         provider_name = actual_model if provider_id == "user-provider" else provider_id