Fix web test failures

- Update notification preferences test to expect enabled: false as default (matching macOS defaults)
- Add PtyManager.initialize() calls to integration tests to fix initialization errors
- Make createTestServer async to properly initialize PtyManager
- Fix formatting issues in test files

This fixes the failing tests in config-service.test.ts, worktree-workflows.test.ts,
and socket-protocol-integration.test.ts.

web/src/server/services/config-service.test.ts

@@ -425,7 +425,7 @@ describe('ConfigService', () => {
       const preferences = configService.getNotificationPreferences();
       // Should return DEFAULT_NOTIFICATION_PREFERENCES instead of undefined
       expect(preferences).toEqual({
-        enabled: true,
+        enabled: false, // Master switch is OFF by default
         sessionStart: true,
         sessionExit: true,
         commandCompletion: true,

web/src/test/helpers/test-server.ts

@@ -39,7 +39,7 @@ export interface TestServerResult {
 /**
  * Create a test server with properly initialized services
  */
-export function createTestServer(options: TestServerOptions = {}): TestServerResult {
+export async function createTestServer(options: TestServerOptions = {}): Promise<TestServerResult> {
   const {
     controlPath,
     isHQMode = false,
@@ -51,6 +51,9 @@ export function createTestServer(options: TestServerOptions = {}): TestServerRes
     },
   } = options;
 
+  // Initialize PtyManager before creating instance
+  await PtyManager.initialize();
+
   // Initialize services
   const ptyManager = new PtyManager(controlPath);
   const terminalManager = new TerminalManager();

web/src/test/integration/socket-protocol-integration.test.ts

@@ -23,7 +23,7 @@ describe('Socket Protocol Integration', () => {
   let ptyManager: PtyManager;
   let sessionHelper: SessionTestHelper;
 
-  beforeEach(() => {
+  beforeEach(async () => {
     // IMPORTANT: macOS has a 104 character limit for Unix socket paths (103 usable).
     // The full socket path will be: testDir + sessionId (36 chars UUID) + '/ipc.sock' (9 chars)
     // Example: /tmp/vt-1234567890/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/ipc.sock
@@ -31,6 +31,10 @@ describe('Socket Protocol Integration', () => {
     // Using /tmp/vt-timestamp keeps us well under the limit.
     testDir = `/tmp/vt-${Date.now()}`;
     fs.mkdirSync(testDir, { recursive: true });
+
+    // Initialize PtyManager before creating instance
+    await PtyManager.initialize();
+
     ptyManager = new PtyManager(testDir);
     sessionHelper = new SessionTestHelper(ptyManager);
   });

web/src/test/integration/worktree-workflows.test.ts

@@ -17,7 +17,7 @@ describe('Worktree Workflows Integration Tests', () => {
     gitRepo = await createStandardTestRepo();
 
     // Create test server with all services properly initialized
-    testServer = createTestServer({
+    testServer = await createTestServer({
       includeRoutes: {
         sessions: true,
         worktrees: true,