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-modules/cms/routes/cms-routes.php

@@ -0,0 +1,12 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+use Modules\Cms\Http\Controllers\CmsPageController;
+
+// CMS content (FAQ, About Us, Terms, etc.) is public and typically shown
+// before the user logs in, so unlike the catalog/routing endpoints this
+// group skips api.auth — throttle:api-read still rate-limits it by IP.
+Route::prefix('api/v1')->middleware(['api', 'throttle:api-read'])->group(function () {
+    Route::get('/cms-pages', [CmsPageController::class, 'index'])->name('cms.pages.index');
+    Route::get('/cms-pages/{page}', [CmsPageController::class, 'show'])->name('cms.pages.show');
+});