chore(backlog): 记录 g327 完成

.ua/backlog.json

@@ -3333,7 +3333,7 @@
     {
       "id": "g327",
       "domain": "tune",
-      "status": "open",
+      "status": "done",
       "title": "stepper 补失败态：提交没过的那一步不再无处表达",
       "motivation": "步骤条只有 done/current/upcoming 三态，某步校验失败时只能把 active 退回去，于是「失败」和「还没走到」长得一模一样——用户看不出是卡住了还是失败了；另外 clickable 时只有圆点能点，标题文字点不动，手指落在文字上是空操作。",
       "acceptance": "① StepperItem 增可选 status: 'error'：该步红点 + 感叹号 + 标题标红，优先级高于进度态、不进 done 也不占 current、不参与回跳；② 失败符号带 role=img + aria-label「第 N 步失败：xx」，读屏不读孤立感叹号；③ clickable 时整个步骤条可点（圆点按钮 + 标题文字），点按钮与点文字各只触发一次 onChange；④ 样式只消费 --ua-*（danger 色 / alpha-soft 淡底 / weight-semibold），audit:visual 计数不涨；⑤ manifest props/步骤与演示同步，npm run check 全绿。",

.ua/iterations.log

@@ -371,3 +371,4 @@
 {"ts":"2026-10-27T01:16:37+08:00","id":"g324","result":"done","commit":"8e358c4","summary":"setColumns 与 setRows 对称：引用未变短路，失效 sorting/filters 按 key 剔除，分页选择不动；smoke 补 6 断言"}
 {"ts":"2026-10-27T01:18:12+08:00","id":"g325","result":"done","commit":"513304f","summary":"img error 监听就地替换为首字占位，role/aria/尺寸/底色不变；manifest 补兜底步骤"}
 {"ts":"2026-10-27T01:53:59+08:00","id":"g326","result":"done","commit":"2f93dcb","summary":"同义词表 72 组 206 词，search 与 MCP 共用 fallbackBySynonym，verify 校验目标存在与一词一组"}
+{"ts":"2026-10-27T01:56:17+08:00","id":"g327","result":"done","commit":"0a5665e","summary":"StepperItem.status=error 红点感叹号 + role=img 读屏，失败不参与进度与回跳；clickable 时整条可点（点按钮/点文字各回调一次）"}