fix(business-loop): complete arbitration balance refund, withdrawal rejection compensation, admin activity takedown, and companion violation alerts

server/src/index.ts

@@ -479,16 +479,18 @@ app.post('/api/activities/:id/adjust-price', async (req: Request, res: Response)
   }
 });
 
-// 房主取消/解散组局并触发全额原路退款
+// 房主或平台管理员取消/违规下架组局并触发全额原路退款
 app.post('/api/activities/:id/cancel', async (req: Request, res: Response) => {
   try {
     const actId = String(req.params.id);
-    const { hostId, reason } = req.body;
-    const result = await repo.cancelActivity(actId, Number(hostId || 1001), reason);
+    const { hostId, reason, operatorRole } = req.body || {};
+    const headerRole = req.headers['x-user-role'];
+    const isAdmin = operatorRole === 'admin' || headerRole === 'admin';
+    const result = await repo.cancelActivity(actId, Number(hostId || 1001), reason, isAdmin);
     res.json({
       code: 20000,
       data: result,
-      message: `组局已成功解散${result.refundedCount > 0 ? `，已原路全额退款 ${result.refundedCount} 位搭子` : ''}`
+      message: `组局已成功解散下架${result.refundedCount > 0 ? `，已原路全额退款 ${result.refundedCount} 位搭子` : ''}`
     });
   } catch (err: any) {
     res.status(400).json({ code: 40000, message: err.message });