style: introduce ruff as linter and formatter (#1356)

* style: remove necessary imports

* style: fix F841

* style: fix F401

* style: fix F811

* style: fix E402

* style: fix E721

* style: fix E722

* style: fix E722

* style: fix F541

* style: ruff format

* style: all passed

* style: add ruff in deps

* style: more ignores in ruff.toml

* style: add pre-commit

pkg/command/operators/reset.py

@@ -2,22 +2,15 @@ from __future__ import annotations
 
 import typing
 
-from .. import operator, entities, cmdmgr, errors
+from .. import operator, entities
 
 
-@operator.operator_class(
-    name="reset",
-    help="重置当前会话",
-    usage='!reset'
-)
+@operator.operator_class(name='reset', help='重置当前会话', usage='!reset')
 class ResetOperator(operator.CommandOperator):
-    
     async def execute(
-        self,
-        context: entities.ExecuteContext
+        self, context: entities.ExecuteContext
     ) -> typing.AsyncGenerator[entities.CommandReturn, None]:
-        """执行
-        """
+        """执行"""
         context.session.using_conversation = None
 
-        yield entities.CommandReturn(text="已重置当前会话")
+        yield entities.CommandReturn(text='已重置当前会话')