Redirect login page directly to Nextcloud OAuth

Skip the intermediate login page entirely.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Filament/Pages/Auth/Login.php

@@ -6,8 +6,9 @@ use Filament\Pages\Auth\Login as BaseLogin;
 
 class Login extends BaseLogin
 {
-    public function getView(): string
+    public function mount(): void
     {
-        return 'filament.pages.auth.login';
+        redirect()->route('auth.nextcloud')->send();
+        exit;
     }
 }