diff --git a/.ua/backlog.json b/.ua/backlog.json
index cdb2d60..0811d34 100644
--- a/.ua/backlog.json
+++ b/.ua/backlog.json
@@ -1620,6 +1620,14 @@
       "acceptance": "recipes.md 新增配方 10（切 data-theme + 同步 color-scheme + 初值先读 localStorage），verify 的配方结构校验通过，llms-full 与 MCP get_recipe 10 可取到骨架。",
       "notes": "",
       "status": "done"
+    },
+    {
+      "id": "g158",
+      "title": "日期选择支持快捷区间预设",
+      "motivation": "仪表盘类界面里「最近 7 天 / 最近 30 天」是高频刚需，现在调用方只能在弹层外自己摆按钮再算日期区间，算完还得手写 value/end 两个信号，重复且易错。",
+      "acceptance": "datePicker 新增 presets 入参（仅区间模式渲染）：每项支持 days 相对今天或 from/to 绝对日期，点击即写入 value/end、按 min/max 钳制并收起；演示页区间示例带三档预设；manifest props 表与步骤、llms-full 同步；npm run check 全绿。",
+      "notes": "",
+      "status": "done"
     }
   ]
 }
diff --git a/.ua/iterations.log b/.ua/iterations.log
index e66278a..40be418 100644
--- a/.ua/iterations.log
+++ b/.ua/iterations.log
@@ -202,3 +202,4 @@
 {"ts":"2026-10-26T15:55:14+08:00","id":"g155","result":"done","commit":"a3ece11","summary":"llms.txt 输出配方目录，修正 MCP 工具描述"}
 {"ts":"2026-10-26T15:55:38+08:00","id":"g156","result":"done","commit":"bbebb70","summary":"ua tokens <子串> 过滤令牌"}
 {"ts":"2026-10-26T15:56:57+08:00","id":"g157","result":"done","commit":"c2412fb","summary":"新增配方 10：暗色主题切换与 color-scheme 同步"}
+{"ts":"2026-10-26T16:00:46+08:00","id":"g158","result":"done","commit":"638f623","summary":"datePicker 新增 presets 快捷区间（days 相对今天 / from-to 绝对日期，min-max 钳制）"}