feat : redirect authenticated users to /applications

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/middleware/auth.global.ts

@@ -10,7 +10,7 @@ export default defineNuxtRouteMiddleware(async (to) => {
         return navigateTo('/login')
     }
 
-    if (isLogin && auth.isAuthenticated) {
-        return navigateTo('/')
+    if (auth.isAuthenticated && (isLogin || to.path === '/')) {
+        return navigateTo('/applications')
     }
 })