Add /api/v1/index.json handler to fix ObjectStackClient.connect() error

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

Author: Copilot

.storybook/mocks.ts

@@ -18,4 +18,16 @@ export const handlers = [
     // - /api/v1/data/:object/:id (GET, PUT, DELETE)
     // - /api/v1/metadata/*
     // - /api/bootstrap
+    
+    // Handle /api/v1/index.json for ObjectStackClient.connect()
+    http.get('/api/v1/index.json', async () => {
+        return HttpResponse.json({
+            version: '1.0',
+            objects: ['contact', 'opportunity', 'account'],
+            endpoints: {
+                data: '/api/v1/data',
+                metadata: '/api/v1/metadata'
+            }
+        });
+    }),
 ];

.storybook/msw-browser.ts

@@ -45,6 +45,17 @@ export async function startMockServer() {
         baseUrl: '/api/v1', 
         logRequests: true,
         customHandlers: [
+            // Handle /api/v1/index.json for ObjectStackClient.connect()
+            http.get('/api/v1/index.json', async () => {
+                return HttpResponse.json({
+                    version: '1.0',
+                    objects: ['contact', 'opportunity', 'account'],
+                    endpoints: {
+                        data: '/api/v1/data',
+                        metadata: '/api/v1/metadata'
+                    }
+                });
+            }),
             // Explicitly handle all metadata requests to prevent pass-through
             http.get('/api/v1/metadata/*', async () => {
                  return HttpResponse.json({});