feat: ✨ 添加登录和获取用户信息接口，整合pinia实现用户状态全局共享

src/store/index.ts

@@ -0,0 +1,12 @@
+import type { App } from "vue";
+import { createPinia } from "pinia";
+
+const store = createPinia();
+
+// 全局注册 store
+export function setupStore(app: App<Element>) {
+  app.use(store);
+}
+
+export * from "./modules/user";
+export { store };