Build browser-native Super Testnet v0 inscription loop

playwright.config.js

@@ -0,0 +1,7 @@
+import { defineConfig, devices } from '@playwright/test';
+export default defineConfig({
+  testDir: './tests', testMatch: '**/*.spec.js', fullyParallel: false,
+  use: { baseURL: 'http://127.0.0.1:4178', trace: 'retain-on-failure' },
+  projects: [ { name: 'desktop', use: { ...devices['Desktop Chrome'] } }, { name: 'mobile', use: { ...devices['Pixel 7'] } } ],
+  webServer: { command: 'node server.js', env: { PORT: '4178' }, url: 'http://127.0.0.1:4178/healthz', reuseExistingServer: false },
+});