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

api/services/annotation_service.py

@@ -1,21 +1,21 @@
 import datetime
-import json
 import uuid
 
 import pandas as pd
+from flask_login import current_user
+from sqlalchemy import or_
+from werkzeug.datastructures import FileStorage
+from werkzeug.exceptions import NotFound
+
 from extensions.ext_database import db
 from extensions.ext_redis import redis_client
-from flask_login import current_user
 from models.model import App, AppAnnotationHitHistory, AppAnnotationSetting, Message, MessageAnnotation
-from sqlalchemy import or_
 from tasks.annotation.add_annotation_to_index_task import add_annotation_to_index_task
 from tasks.annotation.batch_import_annotations_task import batch_import_annotations_task
 from tasks.annotation.delete_annotation_index_task import delete_annotation_index_task
 from tasks.annotation.disable_annotation_reply_task import disable_annotation_reply_task
 from tasks.annotation.enable_annotation_reply_task import enable_annotation_reply_task
 from tasks.annotation.update_annotation_to_index_task import update_annotation_to_index_task
-from werkzeug.datastructures import FileStorage
-from werkzeug.exceptions import NotFound
 
 
 class AppAnnotationService: