feat: add column visibility toggle with localStorage persistence

Add a "列设置" dropdown next to the results header that lets users
check/uncheck columns to show or hide them. Preferences persist across
page refreshes via localStorage. Also add allowedDevOrigins to
next.config.ts for LAN access.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/page.tsx

@@ -4,6 +4,7 @@ import { useState, useEffect, useCallback, useRef } from "react";
 import {
   Search, ChevronLeft, ChevronRight, ChevronUp, ChevronDown, X,
   CheckCircle2, Circle, ArrowUpDown, Boxes, SlidersHorizontal, Loader2,
+  Settings2, Check,
 } from "lucide-react";
 import type { WarehouseRow, QueryResult, FilterOptions } from "@/types/warehouse";
 
@@ -107,6 +108,39 @@ export default function WarehouseDashboard() {
   const [data, setData] = useState<QueryResult | null>(null);
   const [filterOptions, setFilterOptions] = useState<FilterOptions | null>(null);
 
+  /* ── Column visibility ── */
+  const ALL_COL_KEYS = COLUMNS.map((c) => c.key);
+  const [visibleKeys, setVisibleKeys] = useState<Set<string>>(() => new Set(ALL_COL_KEYS));
+  const [showColumnConfig, setShowColumnConfig] = useState(false);
+  const columnConfigRef = useRef<HTMLDivElement>(null);
+
+  /* Hydrate from localStorage after mount to avoid SSR mismatch */
+  useEffect(() => {
+    try {
+      const saved = localStorage.getItem("warehouse-visible-columns");
+      if (saved) setVisibleKeys(new Set(JSON.parse(saved) as string[]));
+    } catch { /* ignore */ }
+  }, []);
+
+  const visibleColumns = COLUMNS.filter((c) => visibleKeys.has(c.key));
+
+  /* Persist column visibility to localStorage */
+  useEffect(() => {
+    localStorage.setItem("warehouse-visible-columns", JSON.stringify([...visibleKeys]));
+  }, [visibleKeys]);
+
+  /* Close column config on outside click */
+  useEffect(() => {
+    if (!showColumnConfig) return;
+    const handler = (e: MouseEvent) => {
+      if (columnConfigRef.current && !columnConfigRef.current.contains(e.target as Node)) {
+        setShowColumnConfig(false);
+      }
+    };
+    document.addEventListener("mousedown", handler);
+    return () => document.removeEventListener("mousedown", handler);
+  }, [showColumnConfig]);
+
   const searchTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
 
   /* Fetch filter options on mount */
@@ -309,7 +343,62 @@ export default function WarehouseDashboard() {
         {/* ── 查询结果 ── */}
         <section className="overflow-hidden rounded-xl border border-slate-200 bg-white shadow-sm">
           <div className="flex flex-wrap items-center justify-between gap-2 border-b border-slate-200 px-4 py-3">
-            <h2 className="text-sm font-semibold text-slate-700">查询结果</h2>
+            <div className="flex items-center gap-2">
+              <h2 className="text-sm font-semibold text-slate-700">查询结果</h2>
+              <div className="relative" ref={columnConfigRef}>
+                <button
+                  onClick={() => setShowColumnConfig((v) => !v)}
+                  className={`grid h-7 w-7 place-items-center rounded-lg border text-slate-500 transition hover:bg-slate-100 ${showColumnConfig ? "border-blue-300 bg-blue-50 text-blue-600" : "border-slate-200"}`}
+                  title="列设置"
+                >
+                  <Settings2 className="h-4 w-4" />
+                </button>
+                {showColumnConfig && (
+                  <div className="absolute left-0 top-full z-30 mt-1 w-52 rounded-xl border border-slate-200 bg-white py-2 shadow-lg">
+                    <div className="max-h-72 overflow-y-auto px-1">
+                      {COLUMNS.map((col) => (
+                        <label
+                          key={col.key}
+                          className="flex cursor-pointer items-center gap-2 rounded-lg px-3 py-1.5 text-sm text-slate-700 hover:bg-slate-50"
+                        >
+                          <span className={`grid h-4 w-4 shrink-0 place-items-center rounded border ${visibleKeys.has(col.key) ? "border-blue-500 bg-blue-500 text-white" : "border-slate-300 bg-white"}`}>
+                            {visibleKeys.has(col.key) && <Check className="h-3 w-3" strokeWidth={3} />}
+                          </span>
+                          <input
+                            type="checkbox"
+                            checked={visibleKeys.has(col.key)}
+                            onChange={() => {
+                              setVisibleKeys((prev) => {
+                                const next = new Set(prev);
+                                if (next.has(col.key)) next.delete(col.key);
+                                else next.add(col.key);
+                                return next;
+                              });
+                            }}
+                            className="sr-only"
+                          />
+                          {col.label}
+                        </label>
+                      ))}
+                    </div>
+                    <div className="flex gap-2 border-t border-slate-100 px-3 pt-2">
+                      <button
+                        onClick={() => setVisibleKeys(new Set(ALL_COL_KEYS))}
+                        className="flex-1 rounded-lg bg-slate-100 px-2 py-1.5 text-xs font-medium text-slate-600 hover:bg-slate-200"
+                      >
+                        全选
+                      </button>
+                      <button
+                        onClick={() => setVisibleKeys(new Set())}
+                        className="flex-1 rounded-lg bg-slate-100 px-2 py-1.5 text-xs font-medium text-slate-600 hover:bg-slate-200"
+                      >
+                        取消全选
+                      </button>
+                    </div>
+                  </div>
+                )}
+              </div>
+            </div>
             <span className="text-xs text-slate-400">数据来源：生产合同 + 装箱明细 + 库位 + 入库记录（LEFT JOIN）</span>
           </div>
 
@@ -333,7 +422,7 @@ export default function WarehouseDashboard() {
               <table className="w-full border-collapse text-sm">
                 <thead>
                   <tr>
-                    {COLUMNS.map((col) => (
+                    {visibleColumns.map((col) => (
                       <th
                         key={col.key}
                         onClick={() => toggleSort(col.key)}
@@ -354,7 +443,7 @@ export default function WarehouseDashboard() {
                 <tbody>
                   {!loading && rows.length === 0 ? (
                     <tr>
-                      <td colSpan={COLUMNS.length + 1} className="px-4 py-16 text-center">
+                      <td colSpan={visibleColumns.length + 1} className="px-4 py-16 text-center">
                         <div className="flex flex-col items-center gap-2 text-slate-400">
                           <Search className="h-8 w-8" />
                           <div className="text-sm">未找到匹配的记录</div>
@@ -368,7 +457,7 @@ export default function WarehouseDashboard() {
                         key={`${r.zongpai}-${r.boxNo}-${i}`}
                         className={`transition-colors ${i % 2 === 0 ? "bg-white hover:bg-slate-50" : "bg-blue-50 hover:bg-blue-100"}`}
                       >
-                        {COLUMNS.map((col) => {
+                        {visibleColumns.map((col) => {
                           const raw = r[col.key as keyof WarehouseRow];
                           const empty = raw === "" || raw == null;
                           const align = col.align === "right" ? "text-right" : "text-left";

next.config.ts

@@ -1,7 +1,7 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  allowedDevOrigins: ["192.168.110.146"],
 };
 
 export default nextConfig;