feat: add shadow LangGraph orchestrator runtime

admin-routes.test.mjs

@@ -129,8 +129,13 @@ test('admin orchestrator routes expose a versioned plug-in control plane', async
         updates.push({ config, context });
         return { ...state, config: { ...state.config, ...config }, configVersion: 2 };
       },
-      async getRuntimeState() {
-        return { ...state, source: 'admin-db' };
+      async getRuntimeState(options) {
+        assert.deepEqual(options, { probe: true });
+        return {
+          ...state,
+          source: 'admin-db',
+          serviceHealth: { ok: true, status: 'healthy' },
+        };
       },
     },
     plazaPosts: null,
@@ -166,7 +171,9 @@ test('admin orchestrator routes expose a versioned plug-in control plane', async
       headers: { cookie: 'h5_user_session=token-admin' },
     });
     assert.equal(runtimeResponse.status, 200);
-    assert.equal((await runtimeResponse.json()).source, 'admin-db');
+    const runtimeBody = await runtimeResponse.json();
+    assert.equal(runtimeBody.source, 'admin-db');
+    assert.equal(runtimeBody.serviceHealth.status, 'healthy');
   } finally {
     await server.close();
   }