fix(auth): 登出時強制清除 Session Cookie 以解決二次登入問題

app/Modules/Core/Controllers/Auth/LoginController.php

@@ -7,6 +7,7 @@ use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
 use Inertia\Inertia;
 use Illuminate\Validation\ValidationException;
+use Illuminate\Support\Facades\Cookie;
 
 class LoginController extends Controller
 {
@@ -71,6 +72,10 @@ class LoginController extends Controller
 
         $request->session()->regenerateToken();
         
+        // 強制清除 Session Cookie (對付 HTTPS/Proxy 環境下的殘留問題)
+        $sessionCookieName = config('session.cookie');
+        Cookie::queue(Cookie::forget($sessionCookieName));
+
         return redirect('/');
     }
 }