chore(backlog): 记录 g56 完成

.ua/backlog.json

@@ -804,6 +804,14 @@
       "acceptance": "新增 checkboxGroup（数组信号、min/max 禁用边界、checkAll 半选、纵横向、整组禁用）；manifest/docs/demo/README/计数同步；npm run check 全绿",
       "status": "done",
       "notes": "自补：表单组件补缺；边界用禁用表达，不抛错不静默回滚"
+    },
+    {
+      "id": "g56",
+      "title": "ua style 增加单文件 200 行门禁",
+      "motivation": "CODING.md 写明「单文件尽量 < 200 行」，但一直是人工约定；随着组件数涨到 54，靠人盯不住，应把这条规范变成可执行门禁",
+      "acceptance": "cmdStyle 增加 sizeCheckFile：只约束分层包 src 内实现文件、types.ts 与 index.ts 豁免；正向全绿、负向（造 210 行文件）退出码 1；AGENTS/CODING/README 同步该门禁说明；npm run check 全绿",
+      "status": "done",
+      "notes": "自补：工具链改进；只约束包内实现文件，cli 自身与 demo 单文件不受限"
     }
   ]
 }

.ua/iterations.log

@@ -100,3 +100,4 @@
 {"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"}
 {"ts":"2026-10-26T12:18:24+08:00","id":"g54","result":"done","commit":"818e20e","summary":"新增 watermark：canvas 平铺单元+令牌色解析+多行旋转间距可配+覆盖层交互穿透，组件数 52→53"}
 {"ts":"2026-10-26T12:19:23+08:00","id":"g55","result":"done","commit":"e54fdb6","summary":"新增 checkboxGroup：数组信号+min/max 禁用边界+checkAll 半选+纵横向，组件数 53→54"}
+{"ts":"2026-10-26T12:20:34+08:00","id":"g56","result":"done","commit":"e6bf801","summary":"ua style 新增单文件 200 行门禁（分层包 src 实现文件，types/index 豁免），CODING 约定变可执行检查"}