feat(notification): add dashboard notification center

internal/pkg/dto/request/notification_request.go

@@ -0,0 +1,15 @@
+package request
+
+type CreateNotificationRequest struct {
+	RecipientUserID  int64  `json:"recipientUserId"`
+	Title            string `json:"title"`
+	Content          string `json:"content"`
+	NotificationType string `json:"notificationType"`
+	BizType          string `json:"bizType"`
+	BizID            int64  `json:"bizId"`
+	ActionURL        string `json:"actionUrl"`
+}
+
+type MarkNotificationReadRequest struct {
+	ID int64 `json:"id"`
+}

internal/pkg/dto/response/notification_response.go

@@ -0,0 +1,18 @@
+package response
+
+type NotificationResponse struct {
+	ID               int64  `json:"id"`
+	RecipientUserID  int64  `json:"recipientUserId"`
+	Title            string `json:"title"`
+	Content          string `json:"content"`
+	NotificationType string `json:"notificationType"`
+	BizType          string `json:"bizType"`
+	BizID            int64  `json:"bizId"`
+	ActionURL        string `json:"actionUrl"`
+	ReadAt           string `json:"readAt,omitempty"`
+	CreatedAt        string `json:"createdAt,omitempty"`
+}
+
+type NotificationUnreadCountResponse struct {
+	UnreadCount int64 `json:"unreadCount"`
+}