Phase 7 dashboard widgets, Gitea CI, and branded landing page (T7.1)

- BookingsTodayWidget, RecentBookingsTableWidget (Booking module) and
  RevenueChartWidget, PaymentFailureRateWidget (Payment module) dashboard
  widgets, auto-registered via each plugin's existing discoverWidgets().
- .gitea/workflows/tests.yml: Postgres-backed Pest run on push/PR.
- Landing page (resources/views/welcome.blade.php) now shows the Famous
  Linnyone4 EV logo with a single admin login link, and the Filament admin
  panel uses the same logo as its brand logo.

app/Providers/Filament/AdminPanelProvider.php

@@ -37,6 +37,8 @@ class AdminPanelProvider extends PanelProvider
             ->path('admin')
             ->viteTheme('resources/css/filament/admin/theme.css')
             ->login()
+            ->brandLogo(asset('images/logo.png'))
+            ->brandLogoHeight('2.5rem')
             ->colors([
                 'primary' => Color::Amber,
             ])