feat: Sprint 1 — Playwright e2e + sandbox orchestration (TDD)

- e2e: Playwright chat-flow (sign up -> chat) with api/web webServer harness
- api: sandbox services subset/media-proxy/manifest/gc + DockerClient contract
- api: SandboxManager orchestrator (fake-Docker tested); /health route
- 53 unit tests green; Playwright e2e green

e2e/package.json

@@ -8,6 +8,7 @@
     "mirror:time": "tsx golden/src/run-mirror-timing.ts"
   },
   "devDependencies": {
+    "@playwright/test": "^1.62.1",
     "tsx": "^4.20.3",
     "typescript": "^5.9.2",
     "vitest": "^3.2.4"

e2e/playwright.config.ts

@@ -0,0 +1,22 @@
+import { defineConfig } from '@playwright/test';
+
+export default defineConfig({
+  testDir: './tests',
+  fullyParallel: true,
+  retries: 0,
+  use: {
+    baseURL: 'http://localhost:5173',
+  },
+  webServer: [
+    {
+      command: 'pnpm --filter @wursor/api start',
+      url: 'http://localhost:3000/health',
+      reuseExistingServer: !process.env.CI,
+    },
+    {
+      command: 'pnpm --filter @wursor/web dev',
+      url: 'http://localhost:5173',
+      reuseExistingServer: !process.env.CI,
+    },
+  ],
+});

e2e/tests/chat-flow.test.ts

@@ -0,0 +1,12 @@
+import { test, expect } from '@playwright/test';
+
+test('user signs up and sees the chat interface', async ({ page }) => {
+  await page.goto('/');
+
+  await page.getByLabel('Email').fill(`e2e-${Date.now()}@example.com`);
+  await page.getByLabel('Password').fill('password123');
+  await page.getByRole('button', { name: 'Sign up' }).click();
+
+  await expect(page.locator('.wursor-chat-input')).toBeVisible();
+  await expect(page.locator('.wursor-welcome')).toContainText('Describe what you want');
+});