feat: add @objectstack/service-ai dependency and auto-register AIServicePlugin in Serve command

Author: hotlong

packages/cli/package.json

@@ -45,6 +45,7 @@
     "@objectstack/plugin-hono-server": "workspace:*",
     "@objectstack/rest": "workspace:*",
     "@objectstack/runtime": "workspace:^",
+    "@objectstack/service-ai": "workspace:*",
     "@objectstack/spec": "workspace:*",
     "@oclif/core": "^4.10.3",
     "bundle-require": "^5.1.0",

packages/cli/src/commands/serve.ts

@@ -243,22 +243,6 @@ export default class Serve extends Command {
         // No translations and no explicit i18n plugin — this is fine, kernel fallback works
       }
 
-      // 3c. Auto-register AIServicePlugin if not already present
-      const hasAiPlugin = plugins.some(
-        (p: any) => p.name === 'com.objectstack.service-ai'
-            || p.constructor?.name === 'AIServicePlugin'
-      );
-      if (!hasAiPlugin) {
-        try {
-          const aiPkg = '@objectstack/service-ai';
-          const { AIServicePlugin } = await import(/* webpackIgnore: true */ aiPkg);
-          await kernel.use(new AIServicePlugin());
-          trackPlugin('AIService');
-        } catch {
-          // @objectstack/service-ai not installed — skip
-        }
-      }
-
       // Add HTTP server plugin BEFORE config plugins so that the
       // http-server service is available for any plugin that needs it
       // during init/start (e.g. AuthPlugin).
@@ -334,6 +318,24 @@ export default class Serve extends Command {
         }
       }
 
+      // 4. Auto-register AIServicePlugin if not already loaded by config plugins.
+      // Registered AFTER Dispatcher so that the ai:routes hook listener is
+      // already in place when AIServicePlugin.start() fires the hook.
+      const hasAIPlugin = plugins.some(
+        (p: any) => p.name === 'com.objectstack.service-ai'
+            || p.constructor?.name === 'AIServicePlugin'
+      );
+      if (!hasAIPlugin) {
+        try {
+          const aiPkg = '@objectstack/service-ai';
+          const { AIServicePlugin } = await import(/* webpackIgnore: true */ aiPkg);
+          await kernel.use(new AIServicePlugin());
+          trackPlugin('AIService');
+        } catch {
+          // @objectstack/service-ai not installed — AI 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.