enhancement: introduce Ruff for Python linter for reordering and removing unused imports with automated pre-commit and sytle check (#2366)

api/core/tools/provider/builtin/maths/tools/eval_expression.py

@@ -1,11 +1,11 @@
 import logging
-from datetime import datetime, timezone
 from typing import Any, Dict, List, Union
 
+import numexpr as ne
+
 from core.tools.entities.tool_entities import ToolInvokeMessage
 from core.tools.tool.builtin_tool import BuiltinTool
-from pytz import timezone as pytz_timezone
-import numexpr as ne
+
 
 class EvaluateExpressionTool(BuiltinTool):
     def _invoke(self,