Testing is complete!! And a nice build runner script to boot

backend/routes/create_room.dart

@@ -6,7 +6,7 @@ import 'package:dart_frog/dart_frog.dart';
 import 'package:logging/logging.dart';
 import 'package:shared_models/room.dart';
 
-final log = Logger('create_room');
+final log = Logger('create_room/');
 
 Future<Response> onRequest(RequestContext context) async {
   // Only allow POST requests
@@ -28,6 +28,17 @@ Future<Response> onRequest(RequestContext context) async {
     // Create the room
     final room = await Db.createRoom(roomCode: roomCode);
 
+    if (room == null) {
+      return Response.json(
+        statusCode: HttpStatus.internalServerError,
+        body: CreateRoomResponse(
+          error: 'Unexpected error: unable to create room',
+          success: false,
+          roomCode: null,
+        ).toJson(),
+      );
+    }
+
     // Return the room code
     return Response.json(
       body: CreateRoomResponse(success: true, roomCode: room.code).toJson(),