feat(07-01): add playwright.config.ts with two-profile device matrix

- Two projects: iphone/WebKit (iPhone 14) + pixel/Chromium (Pixel 7)
- serviceWorkers: 'block' on both profiles per D-02/Pitfall 15
- env-driven baseURL via PLAYWRIGHT_BASE_URL (D-08/Rule 8)
- globalSetup ref to e2e/global-setup.ts (Plan 02 implements)
- webServer manages vite only with reuseExistingServer (D-10)
- no storageState, no toHaveScreenshot per D-01/UI-SPEC Rule 6
- add e2e/global-setup.ts placeholder (stub) so config path resolves

apps/pwa/playwright.config.ts

@@ -0,0 +1,65 @@
+/**
+ * Playwright configuration — Phase 7 Mobile Test Harness
+ *
+ * Two-profile device matrix: iPhone 14/WebKit + Pixel 7/Chromium
+ * Auth: DEV_AUTH_BYPASS=true on the API (never storageState — D-01/Pitfall 14)
+ * SW: serviceWorkers: 'block' on both profiles (D-02/Pitfall 15)
+ * baseURL: env-driven PLAYWRIGHT_BASE_URL (D-08/Rule 8)
+ * webServer: manages Vite only — API+MariaDB+Redis stay compose-managed (D-10)
+ *
+ * Run:
+ *   pnpm --filter @familysync/pwa test:e2e
+ *   pnpm --filter @familysync/pwa exec playwright test --project=pixel
+ */
+import { defineConfig, devices } from '@playwright/test'
+
+export default defineConfig({
+  testDir: './e2e',
+  testMatch: '**/*.spec.ts',
+  fullyParallel: true,
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? 1 : undefined,
+  reporter: process.env.CI ? 'github' : 'list',
+
+  // Plan 02 creates this file — forward-declared, resolves at runtime
+  globalSetup: './e2e/global-setup.ts',
+
+  use: {
+    // env-driven per D-08/Rule 8 — never a hardcoded host
+    baseURL: process.env.PLAYWRIGHT_BASE_URL ?? 'http://localhost:5173',
+    trace: 'on-first-retry',
+    video: 'on-first-retry',
+    screenshot: 'only-on-failure',
+  },
+
+  projects: [
+    {
+      // iPhone 14: 390×844 viewport, WebKit engine, Mobile Safari UA, hasTouch: true
+      // Device descriptor confirmed: playwright deviceDescriptorsSource.json
+      name: 'iphone',
+      use: {
+        ...devices['iPhone 14'],
+        // serviceWorkers: 'block' prevents the injectManifest sw.js (Workbox) from
+        // intercepting requests — satisfies D-02 / Pitfall 15
+        serviceWorkers: 'block',
+      },
+    },
+    {
+      // Pixel 7: 412×915 viewport, Chromium engine, Chrome Android UA, hasTouch: true
+      name: 'pixel',
+      use: {
+        ...devices['Pixel 7'],
+        serviceWorkers: 'block',
+      },
+    },
+  ],
+
+  // D-10: manage Vite only; API+MariaDB+Redis are compose-managed
+  // reuseExistingServer: reuse operator's pnpm dev locally; start fresh in CI
+  webServer: {
+    command: 'pnpm --filter @familysync/pwa dev',
+    url: process.env.PLAYWRIGHT_BASE_URL ?? 'http://localhost:5173',
+    reuseExistingServer: !process.env.CI,
+    timeout: 120_000,
+  },
+})