[Chore/Refactor] Improve type annotations in models module (#25281)

Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: crazywoola <100913391+crazywoola@users.noreply.github.com>

api/controllers/console/explore/workflow.py

@@ -35,6 +35,8 @@ class InstalledAppWorkflowRunApi(InstalledAppResource):
         Run workflow
         """
         app_model = installed_app.app
+        if not app_model:
+            raise NotWorkflowAppError()
         app_mode = AppMode.value_of(app_model.mode)
         if app_mode != AppMode.WORKFLOW:
             raise NotWorkflowAppError()
@@ -73,6 +75,8 @@ class InstalledAppWorkflowTaskStopApi(InstalledAppResource):
         Stop workflow task
         """
         app_model = installed_app.app
+        if not app_model:
+            raise NotWorkflowAppError()
         app_mode = AppMode.value_of(app_model.mode)
         if app_mode != AppMode.WORKFLOW:
             raise NotWorkflowAppError()