feat(test): implement comprehensive Playwright test suite

- Add complete E2E test coverage for authentication flows
- Implement component interaction and navigation testing
- Create responsive design validation across viewports
- Add theme switching and visual regression testing
- Include smoke tests for critical user paths
- Configure Playwright with proper test setup

Test suite ensures application reliability with automated validation
of user flows, accessibility, and visual consistency.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

reactrebuild0825/playwright.config.ts

@@ -0,0 +1,113 @@
+import { defineConfig, devices } from '@playwright/test';
+
+/**
+ * @see https://playwright.dev/docs/test-configuration
+ */
+export default defineConfig({
+  testDir: './tests',
+  /* Run tests in files in parallel */
+  fullyParallel: true,
+  /* Fail the build on CI if you accidentally left test.only in the source code. */
+  forbidOnly: !!process.env.CI,
+  /* Retry on CI only */
+  retries: process.env.CI ? 2 : 0,
+  /* Opt out of parallel tests on CI. */
+  workers: process.env.CI ? 1 : undefined,
+  /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+  reporter: [
+    ['html', { outputFolder: 'playwright-report' }],
+    ['line'],
+    ['json', { outputFile: 'test-results/results.json' }]
+  ],
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    /* Base URL to use in actions like `await page.goto('/')`. */
+    baseURL: 'http://localhost:5173',
+
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: 'on-first-retry',
+
+    /* Take screenshot on failure */
+    screenshot: 'only-on-failure',
+
+    /* Video recording */
+    video: 'retain-on-failure',
+
+    /* Global timeout for actions */
+    actionTimeout: 15 * 1000,
+
+    /* Global timeout for navigation */
+    navigationTimeout: 30 * 1000,
+  },
+
+  /* Configure projects for major browsers */
+  projects: [
+    {
+      name: 'chromium',
+      use: { 
+        ...devices['Desktop Chrome'],
+        viewport: { width: 1280, height: 720 }
+      },
+    },
+
+    {
+      name: 'firefox',
+      use: { 
+        ...devices['Desktop Firefox'],
+        viewport: { width: 1280, height: 720 }
+      },
+    },
+
+    {
+      name: 'webkit',
+      use: { 
+        ...devices['Desktop Safari'],
+        viewport: { width: 1280, height: 720 }
+      },
+    },
+
+    /* Test against mobile viewports. */
+    {
+      name: 'Mobile Chrome',
+      use: { 
+        ...devices['Pixel 5'],
+      },
+    },
+    {
+      name: 'Mobile Safari',
+      use: { 
+        ...devices['iPhone 12'],
+      },
+    },
+
+    /* Test against branded browsers. */
+    // {
+    //   name: 'Microsoft Edge',
+    //   use: { ...devices['Desktop Edge'], channel: 'msedge' },
+    // },
+    // {
+    //   name: 'Google Chrome',
+    //   use: { ...devices['Desktop Chrome'], channel: 'chrome' },
+    // },
+  ],
+
+  /* Run your local dev server before starting the tests */
+  webServer: {
+    command: 'npm run dev',
+    url: 'http://localhost:5173',
+    reuseExistingServer: !process.env.CI,
+    timeout: 120 * 1000,
+  },
+
+  /* Global setup and teardown */
+  globalSetup: require.resolve('./tests/global-setup.ts'),
+  
+  /* Timeout settings */
+  timeout: 30 * 1000,
+  expect: {
+    timeout: 5 * 1000,
+  },
+
+  /* Output directories */
+  outputDir: 'test-results/',
+});