Add admin login page with session auth, route guard, and RTL form layout.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/main.ts

@@ -3,14 +3,18 @@ import { createPinia } from 'pinia'
 
 import App from './App.vue'
 import router from './router'
+import { useAuthStore } from '@/stores/auth'
 
 import '@/assets/styles/main.css'
 import '@/assets/styles/admin.css'
 import '@/assets/styles/responsive.css'
 
 const app = createApp(App)
+const pinia = createPinia()
 
-app.use(createPinia())
+app.use(pinia)
 app.use(router)
 
+useAuthStore(pinia).hydrate()
+
 app.mount('#app')