feat: 添加用户认证功能，优化登录和注册流程，集成表单验证和加载状态

src/router/guard.ts

@@ -1,15 +1,24 @@
-import type { Router } from "vue-router";
+import type { RouteLocation, Router } from "vue-router";
+import authRoutes from "./auth";
+
+function isAuthRoute(route: RouteLocation) {
+  return authRoutes.some(r => r.path === route.path);
+}
 
 export function createRouterGuard(router: Router) {
   router.beforeEach(async (to, from, next) => {
     const userStore = useUserStore();
-    // if (to.meta.requiresAuth && !userStore.isAuthenticated) {
-    //   if (from.path === "/auth/login") {
-    //     return next("/");
-    //   }
-    //   const redirect = encodeURIComponent(to.fullPath);
-    //   return next({ path: "/auth/login", query: { redirect } });
-    // }
+    if (to.meta.requiresAuth && !userStore.isAuthenticated) {
+      if (isAuthRoute(from)) {
+        return next("/");
+      }
+      const redirect = encodeURIComponent(to.fullPath);
+      return next({ path: "/auth/login", query: { redirect } });
+    }
+
+    if (isAuthRoute(to) && userStore.isAuthenticated) {
+      return next("/");
+    }
     next();
   });
 }