fix(test): await pending frontend module teardown

apps/desktop/src/components/vector/__tests__/VectorBrowser.spec.ts

@@ -85,9 +85,11 @@ beforeEach(() => {
   document.body.appendChild(root);
 });
 
-afterEach(() => {
+afterEach(async () => {
+  await flushUi();
   app?.unmount();
   app = null;
+  await flushUi();
   root?.remove();
   root = null;
   document.body.innerHTML = "";

apps/desktop/src/stores/__tests__/connectionStore.findConnectionNode.spec.ts

@@ -37,6 +37,7 @@ describe("connection root lookup", () => {
     // markConnectionLost → clearConnectionNodeLoading 经连接根查找定位节点：
     // 分组内的连接必须能被找到并清除 loading
     store.markConnectionLost("pg-1", new Error("connection lost"));
+    await vi.dynamicImportSettled();
     expect(conn.isLoading).toBe(false);
   });
 
@@ -55,6 +56,7 @@ describe("connection root lookup", () => {
     (collidingDeepNode as { isLoading?: boolean }).isLoading = true;
 
     store.markConnectionLost("pg-1", new Error("connection lost"));
+    await vi.dynamicImportSettled();
     // 真正的连接根被清除 loading；深层碰撞节点不受影响
     expect(realRoot.isLoading).toBe(false);
     expect((collidingDeepNode as { isLoading?: boolean }).isLoading).toBe(true);