chore(backlog): 记录 g28 完成

.ua/backlog.json

@@ -586,8 +586,8 @@
       "title": "Esc 逐层关闭：浮层阻止冒泡",
       "motivation": "弹窗内的 select/menu/popover 展开时按 Esc，会先收下拉再冒泡到 document 的 Esc 栈，导致弹窗一起被关——一次 Esc 关两层",
       "acceptance": "menu/select/popover/tooltip/image 的 Esc 处理各自 stopPropagation，只关本层；演示页在弹窗内放下拉可复现逐层关闭；npm run check 全绿",
-      "status": "open",
-      "notes": "自补：既有组件可用性细节"
+      "status": "done",
+      "notes": "自补：既有组件可用性细节；演示页弹窗内加下拉可复现"
     }
   ]
 }

.ua/iterations.log

@@ -72,3 +72,4 @@
 {"ts":"2026-10-26T11:34:59+08:00","id":"g25","result":"done","commit":"563730c","summary":"新增 ua tokens 命令（--json 可选）与 MCP get_tokens 工具，llms-full 令牌名统一 kebab-case"}
 {"ts":"2026-10-26T11:36:38+08:00","id":"g26","result":"done","commit":"6ad0765","summary":"verify 新增令牌引用校验（拼错变量名即失败），ua tokens 与 llms-full 统一从 tokens.css 取令牌"}
 {"ts":"2026-10-26T11:37:50+08:00","id":"g27","result":"done","commit":"d80e132","summary":"新增 overlay.ts Esc 栈：modal/drawer 后开先关，栈空自动摘全局监听"}
+{"ts":"2026-10-26T11:38:48+08:00","id":"g28","result":"done","commit":"d9feeda","summary":"浮层 Esc 逐层关闭：menu/select/popover/tooltip/image 各自阻止冒泡，弹窗内的下拉收起不再连带关弹窗"}