chore(backlog): 记录 g85 完成

.ua/backlog.json

@@ -1043,7 +1043,7 @@
       "motivation": "定量态只有 aria-valuenow，没有名称——读屏只念「50%」，不知道是什么在 50%；且除 accent/success 外没有失败告警色，同步失败也只能显示成一片蓝",
       "acceptance": "新增 label（可访问名，不确定态缺省「进行中」兜底）与 variant（default/success/warning/danger）；语义色规则置于 .ua-done 之后同特异性胜出，满格不回退 success；样式只消费 --ua-* 令牌；文档 props/steps 与演示同步；npm run check 全绿",
       "notes": "自补：无障碍 + 视觉语义；CSS 层用特异性解决 variant 与满格 success 的冲突，不加 JS 分支",
-      "status": "open"
+      "status": "done"
     }
   ]
 }

.ua/iterations.log

@@ -129,3 +129,4 @@
 {"ts":"2026-10-26T13:00:21+08:00","id":"g82","result":"done","commit":"37412b3","summary":"upload 新增 maxSize/maxCount，accept 对拖拽生效，拒收原因走 role=status 提示行"}
 {"ts":"2026-10-26T13:01:16+08:00","id":"g83","result":"done","commit":"151b542","summary":"开关 input 补 role=switch，新增 ariaLabel 兜底可访问名，演示加无文案实例"}
 {"ts":"2026-10-26T13:02:41+08:00","id":"g84","result":"done","commit":"db5d38c","summary":"新增 columnResize 手柄：拖动/方向键改列宽、双击复位，定宽表头挂载"}
+{"ts":"2026-10-26T13:03:44+08:00","id":"g85","result":"done","commit":"bd64e43","summary":"progress 新增 label 可访问名与 variant 语义色，满格不回退 success"}