Fix mypy type errors in test_agent_mcp_server.py

Declare variables with Any type before try-import block to satisfy mypy
type checking when the imports may fail.

Co-Authored-By: Claude Sonnet 4.5 <[email protected]>

Author: zhangjiongai-debug

test/services/test_agent_mcp_server.py

@@ -11,6 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ========= Copyright 2023-2026 @ CAMEL-AI.org. All Rights Reserved. =========
+from typing import Any, Optional
 from unittest.mock import AsyncMock, Mock, patch
 
 import pytest
@@ -20,6 +21,18 @@
 from camel.responses import ChatAgentResponse
 from camel.toolkits import FunctionTool
 
+# Declare variables with Optional types to satisfy mypy
+agents_dict: Any = None
+description_dict: Any = None
+get_agent_info: Any = None
+get_agents_info: Any = None
+get_available_tools: Any = None
+get_chat_history: Any = None
+reset: Any = None
+set_output_language: Any = None
+step: Any = None
+_IMPORT_ERROR: Optional[str] = None
+
 # Try to import agent_config, skip tests if API keys are missing
 try:
     from services.agent_mcp.agent_config import agents_dict, description_dict
@@ -32,18 +45,7 @@
         set_output_language,
         step,
     )
-
-    _IMPORT_ERROR = None
 except ValueError as e:
-    agents_dict = None
-    description_dict = None
-    get_agent_info = None
-    get_agents_info = None
-    get_available_tools = None
-    get_chat_history = None
-    reset = None
-    set_output_language = None
-    step = None
     _IMPORT_ERROR = str(e)
 
 # Skip all tests if imports failed due to missing API keys