feat(vela): add mocked turn transcript response slice

apps/vela-ui/playwright.config.js

@@ -0,0 +1,41 @@
+import { defineConfig } from '@playwright/test';
+import { fileURLToPath } from 'node:url';
+import path from 'node:path';
+
+const workspaceDir = path.dirname(fileURLToPath(import.meta.url));
+const repoRoot = path.resolve(workspaceDir, '..', '..');
+
+export default defineConfig({
+	testDir: './e2e',
+	timeout: 15_000,
+	expect: {
+		timeout: 5_000
+	},
+	fullyParallel: false,
+	workers: 1,
+	reporter: 'line',
+	use: {
+		baseURL: 'http://127.0.0.1:4173',
+		browserName: 'chromium',
+		headless: true,
+		launchOptions: process.env.PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH
+			? {
+				executablePath: process.env.PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH
+			}
+			: undefined
+	},
+	webServer: [
+		{
+			command: `HOST=127.0.0.1 PORT=3001 npm run start --workspace vela-gateway --prefix "${repoRoot}"`,
+			url: 'http://127.0.0.1:3001/health',
+			reuseExistingServer: true,
+			timeout: 15_000
+		},
+		{
+			command: `VITE_VELA_GATEWAY_WS_URL=ws://127.0.0.1:3001/ws npm run dev --workspace vela-ui --prefix "${repoRoot}" -- --host 127.0.0.1 --port 4173`,
+			url: 'http://127.0.0.1:4173',
+			reuseExistingServer: true,
+			timeout: 15_000
+		}
+	]
+});