feat: Header 倒计时数字滚动动画 — @number-flow/react 替换静态文本

tests/setup.ts

@@ -88,3 +88,23 @@ Object.defineProperty(dom.window, "matchMedia", {
 
 dom.window.Element.prototype.scrollTo = () => {};
 dom.window.Element.prototype.scrollIntoView = () => {};
+
+Object.defineProperty(dom.window, "customElements", {
+  value: {
+    define: () => {},
+    get: () => undefined,
+  },
+  writable: true,
+});
+
+globalThis.customElements = dom.window.customElements;
+
+// Mock @number-flow/react globally (custom elements not supported in jsdom)
+import { mock } from "bun:test";
+import { createElement } from "react";
+
+void mock.module("@number-flow/react", () => {
+  const NumberFlow = () => createElement("span", { "data-testid": "number-flow" });
+  const NumberFlowGroup = ({ children }: { children: unknown }) => children;
+  return { default: NumberFlow, NumberFlowGroup };
+});