chore(backlog): 记录 g303 完成

.ua/backlog.json

@@ -3117,11 +3117,11 @@
     {
       "id": "g303",
       "domain": "visual",
-      "status": "open",
+      "status": "done",
       "title": "拖拽行别用整行透明度：正文对比被压到 4.86",
       "motivation": "sortableList 的拖拽态原本整行 opacity: .7，实测把拖拽行正文对比从 12.03 压到 4.86（亮色）——低于项目正文 7:1 的口径，而「正在被拿起」完全可以用虚线边 + 抬升投影表达，不必牺牲可读性。",
       "acceptance": "① 拖拽态去掉整行 opacity，改用 --ua-shadow-2 抬升 + 虚线 accent 边 + tint-accent 底；② 静态态对比回到 12+（亮）/ 11+（暗）；③ 把手悬停转 accent 色提示可抓，拖拽中 cursor 为 grabbing；④ audit:visual / audit:contrast / audit:motion 全绿，manifest 步骤同步。",
-      "notes": ""
+      "notes": ".is-dragging 去 opacity 改 --ua-shadow-2 抬升 + 虚线 accent 边 + tint-accent 底（对比 4.86 → 12.03 亮 / 11.32 暗）；把手悬停转 accent、拖拽中 grabbing；item 过渡补 box-shadow，manifest 步骤同步"
     }
   ]
 }

.ua/iterations.log

@@ -347,3 +347,4 @@
 {"ts":"2026-10-27T00:26:00+08:00","id":"g300","result":"done","commit":"c013998","summary":"toast 悬停暂停生效：指针落到卡片本体、pause/resume 钳制剩余、键盘聚焦同口径"}
 {"ts":"2026-10-27T00:29:06+08:00","id":"g301","result":"done","commit":"ed3b863","summary":"新增 sortableList（88 组件）：整行可拖 + Alt+↑↓ 键盘搬位，顺序写回信号，仅消费令牌"}
 {"ts":"2026-10-27T00:30:36+08:00","id":"g302","result":"done","commit":"9cb953e","summary":"表头 Shift+点击接上内核多列排序，标记带优先级序号"}
+{"ts":"2026-10-27T00:32:15+08:00","id":"g303","result":"done","commit":"468b177","summary":"拖拽行去掉整行透明度，改抬升投影 + 虚线边，正文对比回到 12"}