diff --git a/.ua/backlog.json b/.ua/backlog.json
index 7affa56..4db7605 100644
--- a/.ua/backlog.json
+++ b/.ua/backlog.json
@@ -1371,7 +1371,7 @@
       "motivation": "金额、比例、权重这类小数场景：step 0.1 步进会累积出 0.30000000000000004 这样的浮点尾差直接写进信号，显示位数也无法约束，调用方只能自己在 onChange 里 toFixed 再写回",
       "acceptance": "InputNumberProps 新增 precision（缺省不处理）：写回与显示都按 toFixed(p) 归一（写回量化 + 输入框定长显示），步进浮点尾差消除；min/max 夹取语义不变；文档参数表 / api 说明 / 手把手与 llms-full.txt 同步；npm run check 全绿",
       "notes": "自补：组件能力补齐；量化收敛在 emit/sync 单点，不改夹取与连发逻辑",
-      "status": "open"
+      "status": "done"
     }
   ]
 }
diff --git a/.ua/iterations.log b/.ua/iterations.log
index 66860be..ca4cd6d 100644
--- a/.ua/iterations.log
+++ b/.ua/iterations.log
@@ -170,3 +170,4 @@
 {"ts":"2026-10-26T14:35:01+08:00","id":"g123","result":"done","commit":"ba102e0","summary":"收尾刷新 CHANGELOG（319 提交）"}
 {"ts":"2026-10-26T14:37:11+08:00","id":"g124","result":"done","commit":"63d3c91","summary":"checkbox 补 indeterminate 半选态（原生属性同步，零新增 CSS）"}
 {"ts":"2026-10-26T14:44:38+08:00","id":"g125","result":"done","commit":"490c9fa","summary":"开关补 loading 加载态（转圈滑块 + aria-busy，单一 effect 防双写）"}
+{"ts":"2026-10-26T14:49:32+08:00","id":"g126","result":"done","commit":"023a2eb","summary":"inputNumber 补 precision 小数位（toFixed 归一，消除步进浮点尾差）"}