fix: remove unused tool_calls and debug logging, fix file ops

- Removed default `tool_calls` assignment from `Api.__call__` in `api.py`
- Removed `debug.error()` logging in two exception blocks in `api.py`
- Fixed malformed URL in `CohereForAI_C4AI_Command.url` by removing leading tab in `CohereForAI_C4AI_Command.py`
- Replaced incorrect `result.text_content` access with just `result` in `Backend_Api.upload_bucket` in `backend_api.py`
- Replaced `shutil.copyfile` with `os.rename`, and added fallback to `shutil.copyfile` on failure in `Backend_Api.upload_bucket` in `backend_api.py

g4f/gui/server/api.py

@@ -107,12 +107,6 @@ class Api:
         model = json_data.get('model')
         provider = json_data.get('provider')
         messages = json_data.get('messages')
-        kwargs["tool_calls"] = [{
-            "function": {
-                "name": "bucket_tool"
-            },
-            "type": "function"
-        }]
         action = json_data.get('action')
         if action == "continue":
             kwargs["tool_calls"].append({
@@ -186,7 +180,6 @@ class Api:
                             yield self._format_json("conversation_id", conversation_id)
                 elif isinstance(chunk, Exception):
                     logger.exception(chunk)
-                    debug.error(chunk)
                     yield self._format_json('message', get_error_message(chunk), error=type(chunk).__name__)
                 elif isinstance(chunk, RequestLogin):
                     yield self._format_json("preview", chunk.to_string())
@@ -232,7 +225,6 @@ class Api:
             yield self._format_json('auth', type(e).__name__, message=get_error_message(e))
         except Exception as e:
             logger.exception(e)
-            debug.error(e)
             yield self._format_json('error', type(e).__name__, message=get_error_message(e))
         finally:
             yield from self._yield_logs()