feat(用户订阅): 添加获取订阅状态接口

新增获取用户设备及邮箱订阅状态的接口，包括请求和响应数据结构定义、路由注册及处理逻辑实现
同时更新相关依赖版本

apis/public/user.api

@@ -114,6 +114,10 @@ type (
 	UnbindDeviceRequest {
 		Id int64 `json:"id" validate:"required"`
 	}
+	GetSubscribeStatusResponse {
+		DeviceStatus  bool `json:"device_status"`
+		EmailStatus   bool `json:"email_status"`
+	}
 )
 
 @server (
@@ -198,6 +202,10 @@ service ppanel {
 	@handler GetSubscribeLog
 	get /subscribe_log (GetSubscribeLogRequest) returns (GetSubscribeLogResponse)
 
+	@doc "Get Subscribe Status (device/email)"
+	@handler GetSubscribeStatus
+	get /subscribe_status returns (GetSubscribeStatusResponse)
+
 	@doc "Verify Email"
 	@handler VerifyEmail
 	post /verify_email (VerifyEmailRequest)