Add CMS module

Static content pages (CmsPage) manageable from a new Filament resource and
readable via a public API endpoint. Wired into the admin panel with its own
CmsPlugin and "CMS" navigation group.

app/Providers/Filament/AdminPanelProvider.php

@@ -23,6 +23,7 @@ use Illuminate\Session\Middleware\StartSession;
 use Illuminate\View\Middleware\ShareErrorsFromSession;
 use Modules\Booking\BookingPlugin;
 use Modules\Catalog\CatalogPlugin;
+use Modules\Cms\CmsPlugin;
 use Modules\Identity\IdentityPlugin;
 use Modules\Payment\PaymentPlugin;
 use Modules\Reporting\ReportingPlugin;
@@ -49,6 +50,7 @@ class AdminPanelProvider extends PanelProvider
                 NavigationGroup::make()->label('Routing'),
                 NavigationGroup::make()->label('Operations'),
                 NavigationGroup::make()->label('Reports'),
+                NavigationGroup::make()->label('CMS'),
             ])
             ->plugins([
                 CatalogPlugin::make(),
@@ -57,6 +59,7 @@ class AdminPanelProvider extends PanelProvider
                 PaymentPlugin::make(),
                 IdentityPlugin::make(),
                 ReportingPlugin::make(),
+                CmsPlugin::make(),
                 // T6.5 — ops convenience for browsing storage/logs/*.log
                 // in-browser; distinct from the structured, per-model audit
                 // trail (AuditLogResource, T6.2). No extra permission gate: