chore: import upstream snapshot with attribution

showcase/scripts/playwright.config.ts

@@ -0,0 +1,33 @@
+/**
+ * Playwright config for showcase E2E tests.
+ *
+ * These tests run against a locally running dev server (starter or package).
+ * Set BASE_URL to point at the right server:
+ *
+ *   BASE_URL=http://localhost:3000 npx playwright test
+ *
+ * Without BASE_URL, defaults to http://localhost:3000.
+ */
+
+import { defineConfig, devices } from "@playwright/test";
+
+export default defineConfig({
+  testDir: "./__tests__/e2e",
+  fullyParallel: true,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? 1 : undefined,
+  reporter: "html",
+  outputDir: "test-results",
+  use: {
+    baseURL: process.env.BASE_URL || "http://localhost:3000",
+    trace: "on-first-retry",
+    screenshot: "only-on-failure",
+  },
+  projects: [
+    {
+      name: "chromium",
+      use: { ...devices["Desktop Chrome"] },
+    },
+  ],
+});