优化用户登录逻辑，简化错误处理，更新密码哈希生成方式为Argon2

main.py

@@ -5,7 +5,7 @@ from models.database import init_db
 from models.migration import migration
 from pkg.lifespan import lifespan
 from pkg.JWT import jwt as JWT
-from pkg.log import log, set_log_level
+from pkg.log import set_log_level
 
 # 添加初始化数据库启动项
 lifespan.add_startup(init_db)
@@ -40,8 +40,9 @@ for router in routers.Router:
             401: {"description": "未授权 Unauthorized"},
             403: {"description": "禁止访问 Forbidden"},
             404: {"description": "未找到 Not found"},
-            500: {"description": "内部服务器错误 Internal server error"}
-        },)
+            500: {"description": "内部服务器错误 Internal server error"},
+        },
+    )
 
 # 启动时打印欢迎信息
 if __name__ == "__main__":