fix: make handlerReady optional to fix TS2741 build errors in objectql protocol.ts

Agent-Logs-Url: https://github.com/objectstack-ai/spec/sessions/6128126f-f465-4553-b944-72b473de3eb0

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/spec/src/api/discovery.test.ts

@@ -783,12 +783,12 @@ describe('ServiceStatus', () => {
 // ==========================================
 
 describe('ServiceInfoSchema (handlerReady field)', () => {
-  it('should default handlerReady to false', () => {
+  it('should default handlerReady to undefined when omitted', () => {
     const info = ServiceInfoSchema.parse({
       enabled: true,
       status: 'available',
     });
-    expect(info.handlerReady).toBe(false);
+    expect(info.handlerReady).toBeUndefined();
   });
 
   it('should accept explicit handlerReady: true', () => {

packages/spec/src/api/discovery.zod.ts

@@ -44,9 +44,9 @@ export const ServiceInfoSchema = z.object({
    * Clients SHOULD check this flag before displaying a service endpoint in the UI.
    * @default false
    */
-  handlerReady: z.boolean().default(false).describe(
+  handlerReady: z.boolean().optional().describe(
     'Whether the HTTP handler is confirmed to be mounted. '
-    + 'false means the route is declared but may return 501.'
+    + 'Omitted or false means the route is declared but may return 501.'
   ),
   /** Route path (only present if enabled) */
   route: z.string().optional().describe('e.g. /api/v1/analytics'),