Integrate User Preferences Service into Studio and CLI

- Add UserPreferencesServicePlugin to Studio server bootstrap
- Add auto-registration in CLI serve command
- Add service to Studio mock kernel for testing
- Add workspace dependency to Studio package.json

Agent-Logs-Url: https://github.com/objectstack-ai/framework/sessions/6c82c1b8-239c-4a91-8794-7e22d1fb5fdc

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

Author: Claude

apps/studio/package.json

@@ -40,6 +40,7 @@
     "@objectstack/service-analytics": "workspace:*",
     "@objectstack/service-automation": "workspace:*",
     "@objectstack/service-feed": "workspace:*",
+    "@objectstack/service-user-preferences": "workspace:*",
     "@objectstack/spec": "workspace:*",
     "@radix-ui/react-avatar": "^1.1.11",
     "@radix-ui/react-checkbox": "^1.3.3",

apps/studio/server/index.ts

@@ -35,6 +35,7 @@ import { MetadataPlugin } from '@objectstack/metadata';
 import { AIServicePlugin } from '@objectstack/service-ai';
 import { AutomationServicePlugin } from '@objectstack/service-automation';
 import { AnalyticsServicePlugin } from '@objectstack/service-analytics';
+import { UserPreferencesServicePlugin } from '@objectstack/service-user-preferences';
 import { getRequestListener } from '@hono/node-server';
 import type { Hono } from 'hono';
 import { createBrokerShim } from '../src/lib/create-broker-shim.js';
@@ -129,6 +130,7 @@ async function ensureKernel(): Promise<ObjectKernel> {
             await kernel.use(new SecurityPlugin());
             await kernel.use(new AuditPlugin());
             await kernel.use(new FeedServicePlugin());
+            await kernel.use(new UserPreferencesServicePlugin());
             await kernel.use(new MetadataPlugin({ watch: false }));
             await kernel.use(new AIServicePlugin());
             await kernel.use(new AutomationServicePlugin());

apps/studio/src/mocks/createKernel.ts

@@ -10,6 +10,7 @@ import { AnalyticsServicePlugin } from '@objectstack/service-analytics';
 import { MetadataPlugin } from '@objectstack/metadata';
 import { AIServicePlugin } from '@objectstack/service-ai';
 import { FeedServicePlugin } from '@objectstack/service-feed';
+import { UserPreferencesServicePlugin } from '@objectstack/service-user-preferences';
 import { createBrokerShim } from '../lib/create-broker-shim';
 
 // System object definitions — resolved via Vite aliases to plugin source (no runtime deps)
@@ -86,6 +87,7 @@ export async function createKernel(options: KernelOptions) {
     // so that the setupNav service is available during their init() phase
     await kernel.use(new SetupPlugin());
     await kernel.use(new FeedServicePlugin());
+    await kernel.use(new UserPreferencesServicePlugin());
     await kernel.use(new MetadataPlugin({ watch: false }));
     await kernel.use(new AIServicePlugin());
     await kernel.use(new AutomationServicePlugin());

packages/cli/src/commands/serve.ts

@@ -356,6 +356,22 @@ export default class Serve extends Command {
         }
       }
 
+      // 5. Auto-register UserPreferencesServicePlugin if not already loaded by config plugins.
+      const hasUserPrefsPlugin = plugins.some(
+        (p: any) => p.name === 'com.objectstack.service-user-preferences'
+            || p.constructor?.name === 'UserPreferencesServicePlugin'
+      );
+      if (!hasUserPrefsPlugin) {
+        try {
+          const userPrefsPkg = '@objectstack/service-user-preferences';
+          const { UserPreferencesServicePlugin } = await import(/* webpackIgnore: true */ userPrefsPkg);
+          await kernel.use(new UserPreferencesServicePlugin());
+          trackPlugin('UserPreferences');
+        } catch {
+          // @objectstack/service-user-preferences not installed — preferences features unavailable
+        }
+      }
+
       // ── Studio UI ─────────────────────────────────────────────────
       // In dev mode, Studio UI is enabled by default (use --no-ui to disable).
       // Always serves the pre-built dist/ — no Vite dev server, no extra port.