feat: add tenant content management features for superadmin

- Implemented API endpoints for listing tenant contents and updating content status.
- Added Swagger documentation for new endpoints:
  - GET /super/v1/tenants/{tenantID}/contents
  - PATCH /super/v1/tenants/{tenantID}/contents/{contentID}/status
- Created DTOs for content item and status update form.
- Enhanced frontend to support content management in the tenant detail page.
- Added search and filter functionalities for tenant contents.
- Implemented unpublish functionality with confirmation dialog.
- Updated service layer to handle new content management logic.

backend/app/http/super/dto/content_status.go

@@ -0,0 +1,8 @@
+package dto
+
+import "quyun/v2/pkg/consts"
+
+type SuperTenantContentStatusUpdateForm struct {
+	// Status supports: unpublished (下架) / blocked (封禁)
+	Status consts.ContentStatus `json:"status" validate:"required,oneof=unpublished blocked"`
+}