Fix: Filter out special model keys when resolving default

When resolving 'default', skip keys like 'default', 'image', 'audio',
'image:*', 'audio:*' to find the first actual LLM model.

codai/models/utils.py

@@ -118,16 +118,18 @@ def get_resolved_model_name(requested_model: str, current_manager = None) -> str
     if current_manager is not None:
         # Check if the model is loaded in the manager
         if hasattr(current_manager, 'models') and current_manager.models:
-            # If requested_model is "default" or empty, get the actual loaded model (not "default")
+            # If requested_model is "default" or empty, get the actual loaded model
             if requested_model in ("default", "", None) or not requested_model:
                 # Try default_model first
                 if hasattr(current_manager, 'default_model') and current_manager.default_model and current_manager.default_model != "default":
                     return current_manager.default_model
-                # Otherwise return the first model that is not "default"
+                # Otherwise return the first model that is not a special key (default, image:, audio:)
                 for key in current_manager.models.keys():
-                    if key != "default":
-                        return key
-                # Fallback to first model if all are "default"
+                    # Skip special model keys
+                    if key in ("default", "image", "audio") or key.startswith("image:") or key.startswith("audio:"):
+                        continue
+                    return key
+                # Fallback to first model if all are special keys
                 return list(current_manager.models.keys())[0]
             # Check if the model is loaded in the manager
             for key, model in current_manager.models.items():