chore(backlog): 记录 g100 完成

.ua/backlog.json

@@ -1163,7 +1163,7 @@
       "motivation": "g97 之后又落了 6 次提交（抽屉四向、遮罩关闭开关、加载播报等），changelog:check 已报漂移",
       "acceptance": "npm run changelog 重新生成（273 提交），changelog:check 一致；npm run check 全绿",
       "notes": "自补：发版前刷新步骤；本条为本次唤起第 22 轮收尾",
-      "status": "open"
+      "status": "done"
     }
   ]
 }

.ua/iterations.log

@@ -144,3 +144,4 @@
 {"ts":"2026-10-26T13:15:34+08:00","id":"g97","result":"done","commit":"3fe1fe3","summary":"重新生成 CHANGELOG（267 提交），收尾确认与提交史一致"}
 {"ts":"2026-10-26T13:16:32+08:00","id":"g98","result":"done","commit":"c32f20c","summary":"modal/drawer 新增 closeOnOverlay，false 时点遮罩不关，× 与 Esc 不变"}
 {"ts":"2026-10-26T13:17:13+08:00","id":"g99","result":"done","commit":"a5d4faf","summary":"spinner 新增 label 可访问名，缺省仍为加载中"}
+{"ts":"2026-10-26T13:17:42+08:00","id":"g100","result":"done","commit":"b190718","summary":"重新生成 CHANGELOG（273 提交），本次唤起 22 轮收尾"}