remove bare list, dict, Sequence, None, Any (#25058)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: -LAN- <laipz8200@outlook.com>

api/models/workflow.py

@@ -282,14 +282,14 @@ class Workflow(Base):
         return self._features
 
     @features.setter
-    def features(self, value: str) -> None:
+    def features(self, value: str):
         self._features = value
 
     @property
     def features_dict(self) -> dict[str, Any]:
         return json.loads(self.features) if self.features else {}
 
-    def user_input_form(self, to_old_structure: bool = False) -> list:
+    def user_input_form(self, to_old_structure: bool = False):
         # get start node from graph
         if not self.graph:
             return []
@@ -439,7 +439,7 @@ class Workflow(Base):
         return results
 
     @conversation_variables.setter
-    def conversation_variables(self, value: Sequence[Variable]) -> None:
+    def conversation_variables(self, value: Sequence[Variable]):
         self._conversation_variables = json.dumps(
             {var.name: var.model_dump() for var in value},
             ensure_ascii=False,
@@ -892,7 +892,7 @@ class ConversationVariable(Base):
         DateTime, nullable=False, server_default=func.current_timestamp(), onupdate=func.current_timestamp()
     )
 
-    def __init__(self, *, id: str, app_id: str, conversation_id: str, data: str) -> None:
+    def __init__(self, *, id: str, app_id: str, conversation_id: str, data: str):
         self.id = id
         self.app_id = app_id
         self.conversation_id = conversation_id
@@ -1073,7 +1073,7 @@ class WorkflowDraftVariable(Base):
         return self.build_segment_with_type(self.value_type, value)
 
     @staticmethod
-    def rebuild_file_types(value: Any) -> Any:
+    def rebuild_file_types(value: Any):
         # NOTE(QuantumGhost): Temporary workaround for structured data handling.
         # By this point, `output` has been converted to dict by
         # `WorkflowEntry.handle_special_values`, so we need to