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/Mail/Concerns/AttachesStoredFiles.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Mail\Concerns;
+
+use Illuminate\Mail\Mailables\Attachment;
+
+trait AttachesStoredFiles
+{
+    /**
+     * @param array<int, array{disk: string, path: string, name: string}> $files
+     * @return array<int, Attachment>
+     */
+    protected function storedFileAttachments(array $files): array
+    {
+        return array_map(
+            fn (array $file) => Attachment::fromStorageDisk($file['disk'], $file['path'])->as($file['name']),
+            $files,
+        );
+    }
+}