refactor: use Field with default_factory for mutable default in TagsResponse

Author: msanatan

MCPForUnity/UnityMcpServer~/src/resources/tags.py

@@ -1,11 +1,12 @@
+from pydantic import Field
 from models import MCPResponse
 from registry import mcp_for_unity_resource
 from unity_connection import async_send_command_with_retry
 
 
 class TagsResponse(MCPResponse):
     """List of all tags in the project."""
-    data: list[str] = []
+    data: list[str] = Field(default_factory=list)
 
 
 @mcp_for_unity_resource(