refactor: align codebase with EventCrew domain and trim legacy band stack

- Update API: events, users, policies, routes, resources, migrations
- Remove deprecated models/resources (customers, setlists, invitations, etc.)
- Refresh admin app and docs; remove apps/band

Made-with: Cursor

api/bootstrap/app.php

@@ -17,6 +17,10 @@ return Application::configure(basePath: dirname(__DIR__))
     )
     ->withMiddleware(function (Middleware $middleware): void {
         // API uses token-based auth, no CSRF needed
+
+        $middleware->alias([
+            'portal.token' => \App\Http\Middleware\PortalTokenMiddleware::class,
+        ]);
     })
     ->withExceptions(function (Exceptions $exceptions): void {
         // Return JSON for all API exceptions