feat: add delete order button to admin panel

DELETE endpoint + trash button (with confirm dialog) in expanded order row.

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

src/app/admin/page.tsx

@@ -4,7 +4,7 @@ import { useState, useEffect, useCallback } from 'react'
 import Image from 'next/image'
 import {
   Download, RefreshCw, LogOut, Search, Package,
-  ChevronDown, Check, X, ShoppingBag, Truck, Users, Euro, Sheet,
+  ChevronDown, Check, X, ShoppingBag, Truck, Users, Euro, Sheet, Trash2,
 } from 'lucide-react'
 import clsx from 'clsx'
 
@@ -80,6 +80,7 @@ export default function AdminPage() {
   const [statusFilter, setStatusFilter] = useState('ALL')
   const [expandedId, setExpandedId] = useState<string | null>(null)
   const [updatingId, setUpdatingId] = useState<string | null>(null)
+  const [deletingId, setDeletingId] = useState<string | null>(null)
   const [syncing, setSyncing] = useState(false)
   const [syncMsg, setSyncMsg] = useState('')
 
@@ -143,6 +144,25 @@ export default function AdminPage() {
     }
   }
 
+  async function deleteOrder(orderId: string, orderNumber: string) {
+    if (!confirm(`Segur que vols esborrar la comanda ${orderNumber}? Aquesta acció no es pot desfer.`)) return
+    setDeletingId(orderId)
+    try {
+      await fetch('/api/orders', {
+        method: 'DELETE',
+        headers: {
+          'Content-Type': 'application/json',
+          'x-admin-password': password,
+        },
+        body: JSON.stringify({ id: orderId }),
+      })
+      setOrders((prev) => prev.filter((o) => o.id !== orderId))
+      setExpandedId(null)
+    } finally {
+      setDeletingId(null)
+    }
+  }
+
   async function handleSyncSheets() {
     setSyncing(true)
     setSyncMsg('')
@@ -454,6 +474,14 @@ export default function AdminPage() {
                           </button>
                         ))}
                       </div>
+                      <button
+                        onClick={() => deleteOrder(order.id, order.orderNumber)}
+                        disabled={deletingId === order.id}
+                        className="mt-4 flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-semibold border border-red-500/30 text-red-400 hover:bg-red-500/10 transition-colors disabled:opacity-50"
+                      >
+                        <Trash2 size={13} />
+                        {deletingId === order.id ? 'Esborrant...' : 'Esborrar comanda'}
+                      </button>
                     </div>
                   </div>
                 )}

src/app/api/orders/route.ts

@@ -51,6 +51,19 @@ export async function GET(req: NextRequest) {
   return NextResponse.json({ orders })
 }
 
+// DELETE /api/orders — delete order by id
+export async function DELETE(req: NextRequest) {
+  if (!checkAdmin(req)) {
+    return NextResponse.json({ error: 'No autoritzat' }, { status: 401 })
+  }
+
+  const { id } = await req.json()
+  if (!id) return NextResponse.json({ error: 'Falta id' }, { status: 400 })
+
+  await prisma.order.delete({ where: { id } })
+  return NextResponse.json({ ok: true })
+}
+
 // PATCH /api/orders — update order status
 export async function PATCH(req: NextRequest) {
   if (!checkAdmin(req)) {