test(banner): 适配首页多轮播停用与兜底逻辑

单条停用仅移除对应轮播；全部停用才回落到内置轮播，覆盖活动/平台实力/服务主题多张配置

tests/phase5_data_sync.js

@@ -69,8 +69,12 @@ const sleep = (ms) => new Promise(r => setTimeout(r, ms));
   sql(`UPDATE fa_banner SET status='hidden' WHERE id=1`);
   await sleep(1500);
   r = await api('/home/index');
-  chk(r.data.banners.length === 1 && r.data.banners[0].id === 0, '全部停用 → 回落到内置兜底文案', '兜底 title=' + r.data.banners[0].title);
-  sql(`UPDATE fa_banner SET status='normal' WHERE id=1`);
+  chk(!r.data.banners.some(b => Number(b.id) === 1) && r.data.banners.length >= 1, '单条停用 → 仅移除该轮播，保留其他主题', '剩余 ' + r.data.banners.length + ' 条');
+  sql(`UPDATE fa_banner SET status='hidden' WHERE id IN (1,2,3,4)`);
+  await sleep(1500);
+  r = await api('/home/index');
+  chk(r.data.banners.length >= 1 && Number(r.data.banners[0].id) === 0, '全部停用 → 回落到内置兜底轮播', '兜底 title=' + r.data.banners[0].title);
+  sql(`UPDATE fa_banner SET status='normal' WHERE id IN (1,2,3,4)`);
   await sleep(1500);
 
   sec('3. 服务保障条（后台 fa_config ↔ /home/index）');