Migrate from Cypress to Playwright

playwright.config.ts

@@ -0,0 +1,32 @@
+import {defineConfig, devices} from '@playwright/test';
+
+export default defineConfig({
+  testDir: './tests',
+  fullyParallel: true,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? '100%' : undefined,
+  reporter: 'html',
+  use: {
+    baseURL: 'http://localhost:3000',
+    locale: 'en-US', // Forces consistent translation keys across locales for robust placeholder selectors
+    trace: 'on-first-retry',
+  },
+  projects: [
+    {
+      name: 'chromium',
+      use: {
+        ...devices['Desktop Chrome'],
+      },
+    },
+  ],
+  webServer: {
+    command: process.env.CI
+      ? 'npx vite preview --port 3000 --strictPort' // CI already builds the app; preview directly with strict port
+      : 'npx vite --no-open --port 3000 --strictPort',
+    port: 3000,
+    reuseExistingServer: !process.env.CI,
+    stdout: 'ignore',
+    stderr: 'pipe',
+  },
+});