feat(admin): IP pool allocation, billing exports, service attachments

- IP pool: sheet import (xlsx/csv) matched by address, bulk allocate/revoke
  with notification email (ip_allocated/ip_revoked), ip_pool_logs history.
- Orders/invoices: Excel export on branded template (BrandedReportWriter),
  shared billing filters, order item service info in list responses.
- Web design quote Excel export; activity log export.
- Service attachments with copy-to-invoice; deployment invoice attachments.
- Customer email attachments stored on disk and attached by path.
- Admin password change endpoint; user.fullname backfill migration;
  orders.user_id backfill from logs.
- Disable deploy workflow until CI/CD is set up.
- Ignore stored customer email and service attachment uploads.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/Exports/OrdersExport.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Exports;
+
+use App\Enums\Order\OrderStatus;
+use App\Exports\Concerns\FormatsBillingCells;
+use App\Models\Order;
+use Illuminate\Database\Eloquent\Builder;
+
+final class OrdersExport implements BrandedReport
+{
+    use FormatsBillingCells;
+
+    public function __construct(private readonly Builder $query) {}
+
+    public function title(): string
+    {
+        return 'Danh sách đơn hàng';
+    }
+
+    public function query(): Builder
+    {
+        return $this->query->latest('id');
+    }
+
+    public function moneyColumns(): array
+    {
+        return ['F', 'G', 'H'];
+    }
+
+    public function headings(): array
+    {
+        return [
+            'Mã đơn hàng', 'Ngày đặt', 'Khách hàng', 'Email', 'Dịch vụ', 'Tạm tính', 'Giảm giá',
+            'Tổng tiền', 'Trạng thái', 'Phương thức thanh toán', 'Hoá đơn', 'Ghi chú', 'Ngày tạo',
+        ];
+    }
+
+    /**
+     * @param Order $order
+     */
+    public function map($order): array
+    {
+        return [
+            $order->order_num,
+            $this->formatDate($order->date),
+            $order->customer?->fullname,
+            $order->customer?->email,
+            $this->describeServices($order),
+            (int) $order->sub_total,
+            (int) $order->discount_amount,
+            (int) $order->total,
+            OrderStatus::tryFrom((int) $order->status)?->label() ?? $order->status,
+            $order->payment?->name ?? $this->paymentMethodLabel($order->payment_method),
+            $order->invoices->pluck('invoice_number')->implode(', '),
+            $order->note,
+            $this->formatDate($order->created_at, 'd/m/Y H:i'),
+        ];
+    }
+}