chore: add ast-grep rule to convert Optional[T] to T | None (#25560)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/core/plugin/backwards_invocation/app.py

@@ -1,5 +1,5 @@
 from collections.abc import Generator, Mapping
-from typing import Optional, Union
+from typing import Union
 
 from sqlalchemy import select
 from sqlalchemy.orm import Session
@@ -53,8 +53,8 @@ class PluginAppBackwardsInvocation(BaseBackwardsInvocation):
         app_id: str,
         user_id: str,
         tenant_id: str,
-        conversation_id: Optional[str],
-        query: Optional[str],
+        conversation_id: str | None,
+        query: str | None,
         stream: bool,
         inputs: Mapping,
         files: list[dict],

api/core/plugin/backwards_invocation/base.py

@@ -1,5 +1,5 @@
 from collections.abc import Generator, Mapping
-from typing import Generic, Optional, TypeVar
+from typing import Generic, TypeVar
 
 from pydantic import BaseModel
 
@@ -23,5 +23,5 @@ T = TypeVar("T", bound=dict | Mapping | str | bool | int | BaseModel)
 
 
 class BaseBackwardsInvocationResponse(BaseModel, Generic[T]):
-    data: Optional[T] = None
+    data: T | None = None
     error: str = ""

api/core/plugin/backwards_invocation/tool.py

@@ -1,5 +1,5 @@
 from collections.abc import Generator
-from typing import Any, Optional
+from typing import Any
 
 from core.callback_handler.workflow_tool_callback_handler import DifyWorkflowCallbackHandler
 from core.plugin.backwards_invocation.base import BaseBackwardsInvocation
@@ -23,7 +23,7 @@ class PluginToolBackwardsInvocation(BaseBackwardsInvocation):
         provider: str,
         tool_name: str,
         tool_parameters: dict[str, Any],
-        credential_id: Optional[str] = None,
+        credential_id: str | None = None,
     ) -> Generator[ToolInvokeMessage, None, None]:
         """
         invoke tool