fix(V0.2): 打卡排序闭包陈旧 + 把手拖动双保险

- useHabitDrag: onDrop 经 ref 桥接实时闭包 —— bind/bindHandle 空依赖
  useCallback 固化了首次渲染(groups=[] 数据未加载)的落位函数, 松手
  静默早退, 顺序永远不变
- 把手路径挂非 passive touchstart preventDefault: 规范上禁止浏览器对
  整个触摸的默认处理 (含滚动), 与 touch-action:none 双保险
- 把手触区放大 (36px 高), 降低按到行体触发不可靠长按路径的概率

src/components/task/useRowDrag.js

@@ -59,12 +59,15 @@ export default function useRowDrag({ columns, onDrop }) {
     cleanup()
   }
 
-  // 指针监听装配 (capture + 非 passive touchmove: 激活后尽力拦截滚动接管)
-  const armListeners = (ev) => {
+  // 指针监听装配 (capture + 非 passive touchmove: 激活后尽力拦截滚动接管;
+  // instant=true 把手路径再挂 touchstart preventDefault, 规范上禁止浏览器对
+  // 整个触摸的默认处理, 彻底杜绝滚动抢占)
+  const armListeners = (ev, instant = false) => {
     try { ev.currentTarget.setPointerCapture(ev.pointerId) } catch { /* ignore */ }
     const el = ev.currentTarget
     const move = (e2) => onMove(e2)
     const tm = (e2) => { if (st.current.active) e2.preventDefault() }
+    const ts = (e2) => e2.preventDefault()
     const up = () => { onUp(); detach() }
     const cancel = () => {
       if (st.current.active) lastEnd.current = Date.now()
@@ -76,11 +79,13 @@ export default function useRowDrag({ columns, onDrop }) {
       el.removeEventListener('pointerup', up)
       el.removeEventListener('pointercancel', cancel)
       el.removeEventListener('touchmove', tm)
+      el.removeEventListener('touchstart', ts)
     }
     el.addEventListener('pointermove', move)
     el.addEventListener('pointerup', up)
     el.addEventListener('pointercancel', cancel)
     el.addEventListener('touchmove', tm, { passive: false })
+    if (instant) el.addEventListener('touchstart', ts, { passive: false })
   }
 
   /** 绑定到列表行: 行元素需设置 touch-action: pan-y (长按路径, 可滚场景不可靠) */
@@ -115,7 +120,7 @@ export default function useRowDrag({ columns, onDrop }) {
       st.current.active = true
       if (navigator.vibrate) navigator.vibrate(15)
       setDrag({ task, fromIdx, toIdx: fromIdx })
-      armListeners(ev)
+      armListeners(ev, true)
     },
     onContextMenu: (ev) => ev.preventDefault(),
     // eslint-disable-next-line react-hooks/exhaustive-deps