Actually commit api-client-php's vendor/ - it was silently gitignored

omsorgCore/CLAUDE.md documents vendor/ as committed so the app can run
without a composer install step, but the generator's own .gitignore
(api-client-php/.gitignore) excludes /vendor/ - it only ever existed
untracked on disk locally, which is why the Docker build worked for me
but mitarbeiter-app crashed at runtime on a real (fresh-checkout) deploy:
"Failed opening required '.../api-client-php/vendor/autoload.php'".
Verified by building from a git-archive-simulated fresh checkout with
this fix applied - mitarbeiter-app's login page now renders without the
fatal error.

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

omsorgWeb/mitarbeiter-app/api-client-php/vendor/autoload.php

@@ -0,0 +1,25 @@
+<?php
+
+// autoload.php @generated by Composer
+
+if (PHP_VERSION_ID < 50600) {
+    if (!headers_sent()) {
+        header('HTTP/1.1 500 Internal Server Error');
+    }
+    $err = 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    if (!ini_get('display_errors')) {
+        if (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') {
+            fwrite(STDERR, $err);
+        } elseif (!headers_sent()) {
+            echo $err;
+        }
+    }
+    trigger_error(
+        $err,
+        E_USER_ERROR
+    );
+}
+
+require_once __DIR__ . '/composer/autoload_real.php';
+
+return ComposerAutoloaderInit3d156d10b574f52a2dfd9a5ced1e76a6::getLoader();