feat: initial Pyramid project scaffold

lib/features/rooms/rooms_page.dart

@@ -0,0 +1,12 @@
+import 'package:flutter/material.dart';
+
+class RoomsPage extends StatelessWidget {
+  const RoomsPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Scaffold(
+      body: Center(child: Text('Rooms')),
+    );
+  }
+}