feat(任务全景): 新增列显隐控制，可勾选去掉不想要的列

- 工具栏新增「列设置」按钮，弹出 checkbox 列表控制列显示/隐藏
- 勾选=显示，取消=去掉该列（如不需要宏观状态可直接取消勾选）
- 操作列(流转树)固定显示不可隐藏，提供「全部显示」重置
- 表格列数与网格跨度按实际显示列动态计算，原有排序/筛选/拖拽保留

frontend/src/pages/admin/AdminTasksPage.tsx

@@ -3,7 +3,7 @@ import { useState, useEffect, useMemo, useCallback } from "react";
 import { useSearchParams } from "react-router-dom";
 import {
   Search, Loader2, Package, ChevronDown, ChevronRight,
-  Warehouse, GitBranch, X, ArrowUp, ArrowDown, ArrowUpDown, Filter,
+  Warehouse, GitBranch, X, ArrowUp, ArrowDown, ArrowUpDown, Filter, Columns,
 } from "lucide-react";
 import { Tooltip, Popover, Checkbox, Input } from "antd";
 import api from "../../services/api";
@@ -185,8 +185,6 @@ export default function AdminTasksPage() {
     },
   ];
 
-  const TOTAL_SPAN = columns.reduce((s, c) => s + c.colSpan, 0);
-
   // ---- 列顺序 / 行排序 / 列筛选状态 ----
   const [columnOrder, setColumnOrder] = useState<string[]>(() => columns.map((c) => c.key));
   const [sort, setSort] = useState<{ key: string; order: SortOrder } | null>(null);
@@ -194,6 +192,8 @@ export default function AdminTasksPage() {
   const [enumFilters, setEnumFilters] = useState<Record<string, Set<string>>>({});
   const [dragCol, setDragCol] = useState<string | null>(null);
   const [dragOverCol, setDragOverCol] = useState<string | null>(null);
+  // 🔧 列显隐：默认全部显示，勾选取消的列从表格中去掉（操作列始终显示）
+  const [hiddenColumns, setHiddenColumns] = useState<Set<string>>(new Set());
 
   // 从看板跳转: ?sn=xxx → 自动搜索 + 自动展开流转树
   const autoSn = searchParams.get("sn") || "";
@@ -308,6 +308,15 @@ export default function AdminTasksPage() {
     });
   }
 
+  // ---- 列显隐：勾选=显示，取消=隐藏（操作列始终显示） ----
+  function toggleColumnVisible(key: string) {
+    setHiddenColumns((prev) => {
+      const next = new Set(prev);
+      if (next.has(key)) next.delete(key); else next.add(key);
+      return next;
+    });
+  }
+
   // ---- 枚举列多选筛选 ----
   function toggleEnumFilter(key: string, value: string) {
     setEnumFilters((prev) => {
@@ -450,6 +459,29 @@ export default function AdminTasksPage() {
     .map((key) => columns.find((c) => c.key === key))
     .filter((c): c is ColumnDef => !!c);
 
+  // 🔧 实际显示的列（排除被隐藏的）+ 动态总跨度
+  const visibleColumns = orderedColumns.filter((c) => !hiddenColumns.has(c.key));
+  const visibleSpan = visibleColumns.reduce((s, c) => s + c.colSpan, 0);
+
+  // 列设置面板内容（列显隐）
+  function renderColumnPanel() {
+    const toggleable = columns.filter((c) => c.key !== "actions");
+    return (
+      <div className="max-h-80 w-48 overflow-auto p-2">
+        {toggleable.map((col) => (
+          <label key={col.key} className="flex cursor-pointer items-center gap-2 rounded px-1 py-1 text-xs text-gray-700 hover:bg-gray-50">
+            <Checkbox checked={!hiddenColumns.has(col.key)} onChange={() => toggleColumnVisible(col.key)} />
+            <span className="truncate">{col.label}</span>
+          </label>
+        ))}
+        <div className="mt-1 flex items-center justify-between border-t border-gray-100 pt-1.5">
+          <button onClick={() => setHiddenColumns(new Set())} className="text-xs text-blue-600 hover:underline">全部显示</button>
+          <span className="text-[10px] text-gray-300">操作列固定</span>
+        </div>
+      </div>
+    );
+  }
+
   // 列筛选面板内容
   function renderFilterPanel(col: ColumnDef) {
     if (col.filterType === "text") {
@@ -505,7 +537,12 @@ export default function AdminTasksPage() {
               </button>
             ))}
           </div>
-          <div className="flex gap-1">
+          <div className="flex items-center gap-1">
+            <Popover trigger="click" placement="bottomRight" content={renderColumnPanel()}>
+              <button className="flex items-center gap-1 rounded px-2 py-1 text-[11px] text-gray-500 hover:bg-gray-100 hover:text-blue-600">
+                <Columns className="h-3 w-3" />列设置
+              </button>
+            </Popover>
             <button onClick={() => setExpandedOrders(new Set(orderGroups.map(g => g.orderNo)))}
               className="rounded px-2 py-1 text-[11px] text-blue-600 hover:bg-blue-50">全部展开</button>
             <button onClick={() => setExpandedOrders(new Set())}
@@ -646,9 +683,9 @@ export default function AdminTasksPage() {
                 {/* 订单展开内容 */}
                 {isOpen && (
                   <div className="border-t border-gray-100">
-                    {/* 表头（可排序 / 可筛选 / 可拖拽换列） */}
+                    {/* 表头（可排序 / 可筛选 / 可拖拽换列 / 可显隐） */}
-                    <div className="grid gap-2 bg-gray-50 px-5 py-2 text-xs font-medium text-gray-500" style={{ gridTemplateColumns: `repeat(${TOTAL_SPAN}, minmax(0, 1fr))` }}>
+                    <div className="grid gap-2 bg-gray-50 px-5 py-2 text-xs font-medium text-gray-500" style={{ gridTemplateColumns: `repeat(${visibleSpan}, minmax(0, 1fr))` }}>
-                      {orderedColumns.map((col) => {
+                      {visibleColumns.map((col) => {
                         const sorted = sort?.key === col.key;
                         const hasFilter = col.filterType === "text"
                           ? !!(textFilters[col.key] || "").trim()
@@ -694,8 +731,8 @@ export default function AdminTasksPage() {
                     {group.products.map((p) => {
                       return (
                         <div key={p.id}>
-                          <div className="grid gap-2 border-t border-gray-50 px-5 py-3 items-center text-sm hover:bg-gray-50/50" style={{ gridTemplateColumns: `repeat(${TOTAL_SPAN}, minmax(0, 1fr))` }}>
+                          <div className="grid gap-2 border-t border-gray-50 px-5 py-3 items-center text-sm hover:bg-gray-50/50" style={{ gridTemplateColumns: `repeat(${visibleSpan}, minmax(0, 1fr))` }}>
-                            {orderedColumns.map((col) => (
+                            {visibleColumns.map((col) => (
                               <div key={col.key} style={{ gridColumn: `span ${col.colSpan} / span ${col.colSpan}` }}>
                                 {col.render(p)}
                               </div>