refactor: 移除IP地址转换字符串的冗余操作

在多个文件中，`request.client.host` 已经是字符串类型，无需再使用 `str()` 进行转换。此次修改简化了代码，避免了不必要的类型转换操作。

backend/app/api/v1/services/system/auth_service.py

@@ -94,7 +94,7 @@ class LoginService:
                 name=user.name,
                 user_name=user.username,
                 ipaddr=request.client.host,
-                login_location=IpLocalUtil.get_ip_location(str(request.client.host)),
+                login_location=IpLocalUtil.get_ip_location(request.client.host),
                 os=user_agent.os.family,
                 browser = user_agent.browser.family,
                 login_time=user.last_login

backend/app/core/router_class.py

@@ -68,7 +68,7 @@ class OperationLogRoute(APIRoute):
                         current_user_id = request.scope.get("user_id")
                     if request.url.path == '/api/v1/system/auth/login':
                         # 只有登录的才会获取登录地址
-                        login_location = IpLocalUtil.get_ip_location(str(request.client.host))
+                        login_location = IpLocalUtil.get_ip_location(request.client.host)
                     
                     await OperationLogService.create_log_service(data=OperationLogCreateSchema(
                         request_path = request.url.path,

backend/app/utils/ip_local_util.py

@@ -35,7 +35,7 @@ class IpLocalUtil:
             logger.error(f"IP格式不合法: {ip}")
             return "未知"
         
-        logger.info(f"获取IP归属地: {ip}")
+        logger.info(f"获取IP归属地: {ip}, 类型: {type(ip)}")
 
         # 内网IP直接返回
         if ip == '127.0.0.1' or ip == 'localhost':
@@ -50,6 +50,7 @@ class IpLocalUtil:
             if ip_result.status_code == 200:
                 
                 data = ip_result.json().get('data', {})
+                logger.info(f"获取IP归属地成功: {data}")
                 # "continent": "亚洲",
                 # "country": "中国",
                 # "zipcode": "710061",