Add facilities, contracts, orders, value lists, audit log, and desktop app modules

Extends omsorgCore with full CRUD for Facility/Contract/Order plus
configurable value lists and an audit trail, and wires the omsorgapp
frontend up to the new facilities, settings, and audit-log modules;
includes a sidebar active-nav-item highlight.

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

omsorgWeb/mitarbeiter-app/index.php

@@ -58,6 +58,8 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 
     <?php if ($error): ?>
       <div class="error" style="margin-bottom:16px"><?= e($error) ?></div>
+    <?php elseif (isset($_GET['pwchanged'])): ?>
+      <div class="hint" style="margin-bottom:16px">Passwort geändert. Bitte melde dich neu an.</div>
     <?php endif; ?>
 
     <form method="post">
@@ -73,6 +75,10 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
       </label>
       <button type="submit" class="btn" style="width:100%;margin-top:6px">Anmelden</button>
     </form>
+
+    <p class="hint" style="text-align:center;margin-top:14px">
+      <a href="pages/forgot-password.php">Passwort vergessen?</a>
+    </p>
   </div>
 </div>