chore: avoid star imports usage (#9123)

api/services/account_service.py

@@ -1,4 +1,5 @@
 import base64
+import json
 import logging
 import secrets
 import uuid
@@ -12,12 +13,22 @@ from werkzeug.exceptions import Unauthorized
 from configs import dify_config
 from constants.languages import language_timezone_mapping, languages
 from events.tenant_event import tenant_was_created
+from extensions.ext_database import db
 from extensions.ext_redis import redis_client
 from libs.helper import RateLimiter, TokenManager
 from libs.passport import PassportService
 from libs.password import compare_password, hash_password, valid_password
 from libs.rsa import generate_key_pair
-from models.account import *
+from models.account import (
+    Account,
+    AccountIntegrate,
+    AccountStatus,
+    Tenant,
+    TenantAccountJoin,
+    TenantAccountJoinRole,
+    TenantAccountRole,
+    TenantStatus,
+)
 from models.model import DifySetup
 from services.errors.account import (
     AccountAlreadyInTenantError,