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/Http/Controllers/Api/Admin/Staff/StaffOnlineController.php

@@ -30,7 +30,7 @@ class StaffOnlineController extends Controller
 
         $online = $users->map(fn ($user) => [
             'user_id'      => $user->id,
-            'name'         => trim($user->firstname . ' ' . $user->lastname),
+            'name'         => $user->name,
             'username'     => $user->username,
             'email'        => $user->email,
             'last_visited' => $user->staffOnline?->last_visited,