chore(backlog): 记录 g86 完成

.ua/backlog.json

@@ -1051,7 +1051,7 @@
       "motivation": "8 个弹层（select / multiSelect / cascader / datePicker / colorPicker / autoComplete / menu / popover）在构造时就在 document 上挂一个永不移除的 click 监听：组件从页面移除后监听仍常驻（SPA 里实例越多越积压），且各写一份重复逻辑；popover 里还残留一个空的 keydown 监听",
       "acceptance": "overlay 新增 bindOutside(root, isOpen, close)：仅展开期间挂全局 click、收起即摘，内部点击直接返回；8 个弹层全部改用它并删掉各自的重复实现；popover 删掉空 keydown，点弹层内部不再误关；npm run check 全绿",
       "notes": "自补：稳健性 + 去重；展开动作本身也是 click，靠 root.contains 卫语句避免刚开就被关",
-      "status": "open"
+      "status": "done"
     }
   ]
 }

.ua/iterations.log

@@ -130,3 +130,4 @@
 {"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"}
+{"ts":"2026-10-26T13:05:35+08:00","id":"g86","result":"done","commit":"a123140","summary":"overlay 新增 bindOutside，8 个弹层改用它，popover 删空 keydown"}