Fix broken login on omsorgWeb: restore refreshToken in auth responses

The cookie-only refresh-token migration earlier this session broke both
mitarbeiter-app and mitarbeiter-app-legacy: they're server-to-server PHP
clients (cURL/Guzzle calling omsorgCore directly) with no browser cookie
jar, so dropping refreshToken from the login/refresh response body left
them with nothing to store - login appeared to succeed, redirected to
the dashboard, but the very next page's session check failed silently
(mitarbeiter-app's _ensure_fresh_token() bails out whenever
$_SESSION['omsorgcore_refresh_token'] is empty), bouncing the user back
to the login form every time.

Fix: dual-mode refresh token transport instead of cookie-only.
- LoginResponse includes refreshToken again (restores the pre-migration
  contract PHP already expected) alongside the HttpOnly cookie.
- AuthController.Refresh/Logout accept an optional body-carried
  RefreshRequest/LogoutRequest as a fallback: cookie is checked first
  (browser/omsorgapp), body second (server-to-server clients).
- omsorgapp keeps ignoring the body's refreshToken and relies solely on
  the cookie (XSS-safe) - only its authApi.js needed a small update since
  the regenerated client now requires an explicit (empty) parameter
  object for refresh/logout.
- Regenerated omsorgcore-client-ts; api-client-php's lib/ was already
  consistent (never regenerated during the original migration, so it
  still expected refreshToken all along - only the backend had stopped
  providing it).

Verified end-to-end against a live instance: PHP login+refresh via
omsorgcore_login()/omsorgcore_refresh(), and the browser cookie-only
flow via curl with Origin/credentials headers - both work.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

omsorgWeb/mitarbeiter-app/api-client-php/vendor/composer/installed.php

@@ -3,7 +3,7 @@
         'name' => '__root__',
         'pretty_version' => 'dev-main',
         'version' => 'dev-main',
-        'reference' => 'ee74ed65f5b0816bf56ecd8e4a346fe039c64dc6',
+        'reference' => 'dca0349e8c889d0d7ff4442450c6f80fabac8468',
         'type' => 'library',
         'install_path' => __DIR__ . '/../../',
         'aliases' => array(),
@@ -13,7 +13,7 @@
         '__root__' => array(
             'pretty_version' => 'dev-main',
             'version' => 'dev-main',
-            'reference' => 'ee74ed65f5b0816bf56ecd8e4a346fe039c64dc6',
+            'reference' => 'dca0349e8c889d0d7ff4442450c6f80fabac8468',
             'type' => 'library',
             'install_path' => __DIR__ . '/../../',
             'aliases' => array(),