fix: call checkAuth on app mount to restore session from localStorage

src/App.vue

@@ -21,8 +21,15 @@
 </template>
 
 <script setup lang="ts">
+import { onMounted } from "vue";
 import { useAuthStore } from "@/stores/auth";
+
 const authStore = useAuthStore();
+
+// Восстанавливаем сессию при загрузке приложения
+onMounted(() => {
+    authStore.checkAuth();
+});
 </script>
 
 <style scoped>