first commit

platform_web/app/App.test.tsx

@@ -0,0 +1,14 @@
+import { renderToStaticMarkup } from "react-dom/server";
+import { describe, expect, it } from "vitest";
+
+import { App } from "./App";
+
+describe("App", () => {
+  it("renders a visible authentication loading state before the session resolves", () => {
+    const html = renderToStaticMarkup(<App />);
+
+    expect(html).toContain("正在加载身份状态");
+    expect(html).toContain("auth-shell");
+    expect(html).not.toContain("blank");
+  });
+});