diff --git a/backend/static/js/app.js b/backend/static/js/app.js
index a179d0e..25a949c 100644
--- a/backend/static/js/app.js
+++ b/backend/static/js/app.js
@@ -3,7 +3,7 @@
    Router, State-Management, Navigation, Initialisierung.
    ============================================================ */
 
-const APP_VER     = '580'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
+const APP_VER     = '581'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
 const APP_VERSION = '1.2.1'; // ← semantische Version, wird bei make release gesetzt
 const IS_STAGING  = location.hostname === 'staging.banyaro.app';
 
diff --git a/backend/static/js/pages/jobs.js b/backend/static/js/pages/jobs.js
index 7ad5e68..c8dd539 100644
--- a/backend/static/js/pages/jobs.js
+++ b/backend/static/js/pages/jobs.js
@@ -7,6 +7,8 @@ window.Page_jobs = (() => {
   let _container = null;
   let _appState  = null;
 
+  const _esc = s => UI.escape(s ?? '');
+
   async function init(container, appState) {
     _container = container;
     _appState  = appState;
@@ -122,7 +124,7 @@ window.Page_jobs = (() => {
         </div>
         ${app.admin_note ? `<div style="margin-top:var(--space-3);background:var(--c-surface-2);
           border-radius:var(--radius-md);padding:var(--space-3);font-size:var(--text-sm);
-          color:var(--c-text-secondary);text-align:left">${UI.esc(app.admin_note)}</div>` : ''}
+          color:var(--c-text-secondary);text-align:left">${_esc(app.admin_note)}</div>` : ''}
       </div>`;
   }
 
@@ -139,13 +141,13 @@ window.Page_jobs = (() => {
             <div class="form-group">
               <label class="form-label">Dein Name *</label>
               <input class="form-control" type="text" name="name"
-                     value="${u ? UI.esc(u.name) : ''}" placeholder="Vorname oder Nickname" required>
+                     value="${u ? _esc(u.name) : ''}" placeholder="Vorname oder Nickname" required>
             </div>
 
             <div class="form-group">
               <label class="form-label">E-Mail *</label>
               <input class="form-control" type="email" name="email"
-                     value="${u ? UI.esc(u.email || '') : ''}" placeholder="deine@email.de" required>
+                     value="${u ? _esc(u.email || '') : ''}" placeholder="deine@email.de" required>
             </div>
 
             <div style="display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3)">
diff --git a/backend/static/sw.js b/backend/static/sw.js
index f72df43..34c48e3 100644
--- a/backend/static/sw.js
+++ b/backend/static/sw.js
@@ -3,7 +3,7 @@
    Offline-Cache + Push Notifications + Tile-Cache
    ============================================================ */
 
-const CACHE_VERSION = 'by-v580';
+const CACHE_VERSION = 'by-v581';
 const CACHE_STATIC  = `${CACHE_VERSION}-static`;
 const CACHE_TILES   = 'ban-yaro-tiles-v1';  // bleibt über SW-Updates erhalten
 const CACHE_API     = 'ban-yaro-api-v1';    // API-Response-Cache