chore(backlog): 记录 g109 完成

.ua/backlog.json

@@ -1235,7 +1235,7 @@
       "motivation": "tooltip 只挂 pointerenter / pointerleave：触摸屏上按下会触发 enter（延迟 150ms 出），抬手立刻触发 leave 收起 —— 等于气泡刚出来就被手指带走，用户根本没机会读；移动端等于该组件不可用",
       "acceptance": "触摸指针（pointerType=touch）不走 hover 分支，改为按下即出场、抬手后延迟 1.2s 收起；鼠标与键盘路径行为不变；re-enter 时清掉上一轮的延迟收起计时；文档手把手与 api 说明补触摸语义；npm run check 全绿",
       "notes": "自补：可用性；只在原文件加两个分支与一个计时器，未改签名",
-      "status": "open"
+      "status": "done"
     }
   ]
 }

.ua/iterations.log

@@ -153,3 +153,4 @@
 {"ts":"2026-10-26T13:58:26+08:00","id":"g106","result":"done","commit":"c66bcf3","summary":"新增 watchViewport：affix/backTop/anchor/tour 的 scroll+resize 卸载后自摘，防空转累积"}
 {"ts":"2026-10-26T13:59:52+08:00","id":"g107","result":"done","commit":"48f9465","summary":"新增 popconfirm 二次确认气泡（popover 补受控 open），组件 58→59"}
 {"ts":"2026-10-26T14:01:11+08:00","id":"g108","result":"done","commit":"5601e59","summary":"form 提交失败统计不通项数，顶部 role=alert 汇总条 + onError(count)"}
+{"ts":"2026-10-26T14:02:01+08:00","id":"g109","result":"done","commit":"1bf35da","summary":"tooltip 触摸屏改为按下即出、抬手延迟 1.2s 收，鼠标/键盘路径不变"}