test(e2e): honor configured game base paths

app/game-frontend/e2e/gameTestPaths.ts

@@ -0,0 +1,6 @@
+const normalizedBasePath = (process.env.PLAYWRIGHT_GAME_BASE_PATH ?? 'che').replace(/^\/+|\/+$/g, '');
+
+export const gameBasePath = `/${normalizedBasePath}`;
+export const gameProfile = process.env.PLAYWRIGHT_GAME_PROFILE ?? 'che:default';
+export const gameTrpcRoute = `**${gameBasePath}/api/trpc/**`;
+export const gamePath = (suffix = ''): string => `${gameBasePath}${suffix.startsWith('/') ? suffix : `/${suffix}`}`;