first commit

internal/dto/notification.go

@@ -0,0 +1,19 @@
+package dto
+
+// NotificationSendRequest 单用户通知请求。
+type NotificationSendRequest struct {
+	UserID  int64  `json:"user_id" binding:"required,min=1"`
+	Title   string `json:"title" binding:"required,max=64"`
+	Content string `json:"content" binding:"required,max=500"`
+}
+
+// NotificationBroadcastRequest 全量广播请求。
+type NotificationBroadcastRequest struct {
+	Title   string `json:"title" binding:"required,max=64"`
+	Content string `json:"content" binding:"required,max=500"`
+}
+
+// NotificationBroadcastResponse 广播结果。
+type NotificationBroadcastResponse struct {
+	SentCount int64 `json:"sent_count"` // 已发送用户数
+}