chore(backlog): 记录 g53 完成

.ua/backlog.json

@@ -780,6 +780,14 @@
       "acceptance": "新增 colorPicker（预设色板 + 原生取色器 + 手输 CSS 颜色串、值信号、Esc 入栈、触发器实时预览）；manifest/docs/demo/README/计数同步；npm run check 全绿",
       "status": "done",
       "notes": "自补：组件补充；预设缺省为令牌色而非硬编码 hex"
+    },
+    {
+      "id": "g53",
+      "title": "新增 tour 引导漫游组件",
+      "motivation": "新用户首次进入复杂页面缺少分步指引；库内已有 overlay/position 能力，聚光挖洞式引导是最自然的组合产物",
+      "acceptance": "新增 tour（返回 {el,start,close} 句柄、按选择器聚光、卡片自动选方位、滚动重算、末步完成/跳过区分回调、Esc 入栈、焦点归还）；manifest/docs/demo/README/计数同步；npm run check 全绿",
+      "status": "done",
+      "notes": "自补：组件补充；聚光用超大 box-shadow 挖洞，省掉独立遮罩层"
     }
   ]
 }

.ua/iterations.log

@@ -97,3 +97,4 @@
 {"ts":"2026-10-26T12:14:00+08:00","id":"g50","result":"done","commit":"e270e09","summary":"新增 datePicker 日期选择：单月网格+翻月/今天+min-max 闭区间+逐日逐周逐月键盘导航，组件数 48→49"}
 {"ts":"2026-10-26T12:15:04+08:00","id":"g51","result":"done","commit":"b93b6dd","summary":"新增 backTop 返回顶部：阈值浮现+conic 进度环+平滑回顶（尊重 reduced-motion）+内滚容器支持，组件数 49→50"}
 {"ts":"2026-10-26T12:16:11+08:00","id":"g52","result":"done","commit":"81ea189","summary":"新增 colorPicker：预设色板（缺省语义令牌色）+原生取色器+手输 CSS 颜色串，组件数 50→51"}
+{"ts":"2026-10-26T12:17:23+08:00","id":"g53","result":"done","commit":"697d354","summary":"新增 tour 引导漫游：聚光挖洞+卡片自动选方位+滚动重算+完成/跳过回调+Esc 入栈，组件数 51→52"}