diff --git a/public/flux-studio-ux.js b/public/flux-studio-ux.js
index ad02d2d..e94394d 100644
--- a/public/flux-studio-ux.js
+++ b/public/flux-studio-ux.js
@@ -12,6 +12,18 @@
     return node;
   };
 
+  const setText = (node, value) => {
+    if (!node) return;
+    const normalized = String(value ?? '');
+    if (node.textContent !== normalized) node.textContent = normalized;
+  };
+
+  const setData = (node, name, value) => {
+    if (!node) return;
+    const normalized = String(value ?? '');
+    if (node.dataset[name] !== normalized) node.dataset[name] = normalized;
+  };
+
   const readStoredView = () => {
     try {
       const stored = localStorage.getItem(VIEW_KEY) || 'create';
@@ -36,11 +48,6 @@
     });
   };
 
-  const parseNumber = value => {
-    const match = String(value || '').replace(/\./g, '').match(/\d+/);
-    return match ? Number(match[0]) : 0;
-  };
-
   function createViewButton(view, label, copy) {
     const button = createNode('button', 'ux-flux-view-tab');
     button.type = 'button';
@@ -75,7 +82,7 @@
 
   function setView(root, view, { persist = true, focus = false } = {}) {
     const normalized = VALID_VIEWS.includes(view) ? view : 'create';
-    root.dataset.uxFluxView = normalized;
+    setData(root, 'uxFluxView', normalized);
     if (persist) storeView(normalized);
 
     root.querySelectorAll('[data-ux-flux-view]').forEach(button => {
@@ -101,8 +108,8 @@
       const target = normalized === 'create'
         ? root.querySelector('#flux-studio-prompt')
         : normalized === 'jobs'
-          ? root.querySelector('#flux-job-center-body, #flux-job-center-toggle')
-          : root.querySelector('#flux-studio-history, #flux-studio-favorites-only');
+          ? root.querySelector('#flux-job-center-toggle, #flux-job-center-body')
+          : root.querySelector('#flux-studio-favorites-only, #flux-studio-history');
       focusNode(target);
     }
   }
@@ -297,15 +304,15 @@
     const jobState = readJobState(root);
     const jobBadge = root.querySelector('[data-ux-flux-view-badge="jobs"]');
     if (jobBadge) {
-      jobBadge.textContent = jobState.issues ? 'Problem' : jobState.active ? 'Aktiv' : jobState.hasJobs ? 'Verlauf' : '';
-      jobBadge.dataset.tone = jobState.issues ? 'danger' : jobState.active ? 'working' : 'neutral';
+      setText(jobBadge, jobState.issues ? 'Problem' : jobState.active ? 'Aktiv' : jobState.hasJobs ? 'Verlauf' : '');
+      setData(jobBadge, 'tone', jobState.issues ? 'danger' : jobState.active ? 'working' : 'neutral');
     }
 
     const libraryBadge = root.querySelector('[data-ux-flux-view-badge="library"]');
     if (libraryBadge) {
       const count = readLibraryCount(root);
-      libraryBadge.textContent = count ? String(count) : '';
-      libraryBadge.dataset.tone = 'neutral';
+      setText(libraryBadge, count ? String(count) : '');
+      setData(libraryBadge, 'tone', 'neutral');
     }
   }
 
@@ -316,7 +323,7 @@
     const image = root.querySelector('#flux-studio-preview-image');
     const hasResult = Boolean(image?.getAttribute('src')) && !image.classList.contains('hidden');
     const progress = root.querySelector('#flux-studio-progress');
-    const isBusy = progress && !progress.classList.contains('hidden');
+    const isBusy = Boolean(progress && !progress.classList.contains('hidden'));
     const jobState = readJobState(root);
 
     const completed = {
@@ -334,31 +341,30 @@
           ? 'result'
           : 'profile';
 
-    root.dataset.uxFluxCurrentStep = current;
+    setData(root, 'uxFluxCurrentStep', current);
     root.querySelectorAll('[data-ux-flux-step]').forEach(step => {
       const id = step.dataset.uxFluxStep;
       const active = id === current;
       step.classList.toggle('is-current', active);
       step.classList.toggle('is-complete', Boolean(completed[id]));
       step.setAttribute('aria-pressed', String(active));
-      const state = step.querySelector('.ux-flux-step-state');
-      if (state) state.textContent = completed[id] ? 'Erledigt' : active ? 'Jetzt' : 'Offen';
+      setText(step.querySelector('.ux-flux-step-state'), completed[id] ? 'Erledigt' : active ? 'Jetzt' : 'Offen');
     });
 
     const next = root.querySelector('[data-ux-flux-next]');
     if (next) {
       if (!completed.prompt) {
-        next.dataset.uxFluxNext = 'prompt';
-        next.textContent = 'Prompt eingeben';
+        setData(next, 'uxFluxNext', 'prompt');
+        setText(next, 'Prompt eingeben');
       } else if (jobState.issues || jobState.active || isBusy) {
-        next.dataset.uxFluxNext = 'jobs';
-        next.textContent = jobState.issues ? 'Probleme prüfen' : 'Auftrag überwachen';
+        setData(next, 'uxFluxNext', 'jobs');
+        setText(next, jobState.issues ? 'Probleme prüfen' : 'Auftrag überwachen');
       } else if (hasResult) {
-        next.dataset.uxFluxNext = 'result';
-        next.textContent = 'Ergebnis prüfen';
+        setData(next, 'uxFluxNext', 'result');
+        setText(next, 'Ergebnis prüfen');
       } else {
-        next.dataset.uxFluxNext = 'generate';
-        next.textContent = 'Profil prüfen & Auftrag starten';
+        setData(next, 'uxFluxNext', 'generate');
+        setText(next, 'Profil prüfen & Auftrag starten');
       }
     }
 
@@ -424,13 +430,22 @@
     };
 
     const observer = new MutationObserver(schedule);
-    observer.observe(root, {
+    const targets = [
+      root.querySelector('#flux-job-summary'),
+      root.querySelector('#flux-job-list'),
+      root.querySelector('#flux-history-page-info'),
+      root.querySelector('#flux-studio-history'),
+      root.querySelector('#flux-studio-preview-image'),
+      root.querySelector('#flux-studio-progress'),
+      root.querySelector('#flux-studio-status'),
+    ].filter(Boolean);
+    targets.forEach(target => observer.observe(target, {
       subtree: true,
       childList: true,
       characterData: true,
       attributes: true,
       attributeFilter: ['class', 'src', 'data-state', 'data-tone', 'disabled'],
-    });
+    }));
     root.querySelectorAll('input,textarea,select').forEach(field => {
       field.addEventListener('input', schedule);
       field.addEventListener('change', schedule);