fix(任务): 修复列表与看板拖拽「能触发但放不下」—— uuid 主键被 Number() 成 NaN

0.2.1 切本地库后 Task.id / BoardColumn.id 为 uuid 字符串, 拖拽落点却用
Number(dataset.xxxId) 取值得到 NaN:
  - 看板 hitColumn 返回 NaN -> NaN 为 falsy, onDrop 永不触发; 目标列也不高亮
  - 列表 colId/taskId 为 NaN -> 组内命中与换列 findIndex 恒失败, 松手无操作
(打卡侧仍走 REST 数字 id, 故未受影响)

- 新增 src/pages/task/ids.js: idStr / sameId / datasetId, 统一按字符串比对
- useColumnDrag / useRowDrag: 落点、组内命中、换列、提交判定改用 sameId
- ProjectView: moveToColumn / reorderTask / changeStatus 改用 sameId,
  落点为空直接忽略, 不把坏 id 写进本地库
- api/task.js: update 拦截 "NaN"/"undefined" 列 id, 报「看板列无效」

验证: headless Edge + CDP 派发真实指针事件驱动两个 hook (uuid 数据),
修复前 4 条落点断言全挂, 修复后全部通过。

src/pages/task/ProjectView.jsx

@@ -2,6 +2,7 @@ import { useCallback, useEffect, useMemo, useState } from 'react'
 import { ActionSheet, Dialog, DotLoading, Toast } from 'antd-mobile'
 import { projectApi, taskApi } from '../../api/task.js'
 import { filterVisible, msToNextBoundary } from './date.js'
+import { sameId } from './ids.js'
 import { getViewMode, setViewMode } from './prefs.js'
 import { parseTimePrefix, splitTitle } from './quickAdd.js'
 import ListView from './ListView.jsx'
@@ -100,10 +101,12 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
 
   /** 拖拽换列 (T-BD-04/07) */
   const moveToColumn = async (task, columnId) => {
-    const col = columns.find((c) => c.id === columnId)
+    // columnId 来自拖动落点 (uuid 字符串); 空值直接忽略, 不要把坏 id 写进本地库
+    if (columnId === null || columnId === undefined || columnId === '') return
+    const col = columns.find((c) => sameId(c.id, columnId))
     try {
       await updateTask(task.id, { columnId })
-      const target = columns.find((c) => c.id === columnId)
+      const target = columns.find((c) => sameId(c.id, columnId))
       if (target?.boundStatus && target.boundStatus !== task.status) {
         Toast.show({ content: `已移入 ${col?.name}，状态改为「${target.boundStatus === 'done' ? '完成' : target.boundStatus === 'doing' ? '执行中' : '未开始'}」` })
       } else {
@@ -116,11 +119,11 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
   const reorderTask = async (task, targetId, after) => {
     const snapshot = tasks
     const orderedCols = [...(columns || [])].sort((a, b) => a.sortOrder - b.sortOrder)
-    const groups = orderedCols.map((c) => (tasks || []).filter((t) => t.columnId === c.id)).filter((l) => l.length)
-    const g = groups.find((l) => l.some((t) => t.id === task.id))
+    const groups = orderedCols.map((c) => (tasks || []).filter((t) => sameId(t.columnId, c.id))).filter((l) => l.length)
+    const g = groups.find((l) => l.some((t) => sameId(t.id, task.id)))
     if (!g) return
-    const rest = g.filter((t) => t.id !== task.id)
-    const ti = rest.findIndex((t) => t.id === targetId)
+    const rest = g.filter((t) => !sameId(t.id, task.id))
+    const ti = rest.findIndex((t) => sameId(t.id, targetId))
     if (ti < 0) return
     rest.splice(after ? ti + 1 : ti, 0, task)
     const flat = groups.map((l) => (l === g ? rest : l)).flat()
@@ -143,9 +146,9 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
   const changeStatus = async (task, status) => {
     try {
       const fresh = await updateTask(task.id, { status })
-      const moved = fresh && fresh.columnId !== task.columnId
+      const moved = fresh && !sameId(fresh.columnId, task.columnId)
       if (moved) {
-        const col = columns.find((c) => c.id === fresh.columnId)
+        const col = columns.find((c) => sameId(c.id, fresh.columnId))
         Toast.show({ content: `已移至 ${col?.name || '目标列'}` })
       }
     } catch { /* ignore */ }