fix(server): Use async service resolution for ObjectQL on Vercel

Agent-Logs-Url: https://github.com/objectstack-ai/framework/sessions/513c44ed-000f-41d7-8aed-49b74803191d

Co-authored-by: xuyushun441-sys <255036401+xuyushun441-sys@users.noreply.github.com>

Author: Claude

apps/server/server/index.ts

@@ -84,7 +84,7 @@ async function ensureKernel(): Promise<ObjectKernel> {
 
             // Configure datasource mapping
             // This must be done before loading apps, so ObjectQL can route objects correctly
-            const ql = kernel.getService('ObjectQL');
+            const ql = await kernel.getServiceAsync('ObjectQL');
             if (ql && typeof ql.setDatasourceMapping === 'function') {
                 ql.setDatasourceMapping([
                     // Example apps use in-memory driver for fast, ephemeral data