feat: implement instant live DOM rendering and debounced auto-save to backend

app/data/site.config.json

@@ -86,9 +86,59 @@
             "sectionTitle": "Unsere Highlights",
             "sectionSubtitle": "Modernste Features im Überblick"
           }
+        },
+        {
+          "id": "sec_contactsection_1786313966524",
+          "type": "ContactSection",
+          "settings": {
+            "title": "Kontaktieren Sie uns",
+            "subtitle": "Wir antworten innerhalb von 24 Stunden."
+          }
+        },
+        {
+          "id": "sec_bentogrid_1786313967196",
+          "type": "BentoGrid",
+          "settings": {
+            "sectionTitle": "Unsere Highlights",
+            "sectionSubtitle": "Modernste Features im Überblick"
+          }
+        },
+        {
+          "id": "sec_bentogrid_1786313968059",
+          "type": "BentoGrid",
+          "settings": {
+            "sectionTitle": "Unsere Highlights",
+            "sectionSubtitle": "Modernste Features im Überblick"
+          }
+        },
+        {
+          "id": "sec_contactsection_1786313968892",
+          "type": "ContactSection",
+          "settings": {
+            "title": "Kontaktieren Sie uns",
+            "subtitle": "Wir antworten innerhalb von 24 Stunden."
+          }
+        },
+        {
+          "id": "sec_bentogrid_1786313969624",
+          "type": "BentoGrid",
+          "settings": {
+            "sectionTitle": "Unsere Highlights",
+            "sectionSubtitle": "Modernste Features im Überblick"
+          }
+        },
+        {
+          "id": "sec_herosection_1786313970384",
+          "type": "HeroSection",
+          "settings": {
+            "title": "Neue Überschrift",
+            "subtitle": "Beschreibungstext hier eingeben.",
+            "ctaPrimaryText": "Jetzt anfragen",
+            "ctaPrimaryLink": "#contact"
+          }
         }
       ]
     }
   ],
-  "updated_at": "2026-08-09T22:16:29.073Z"
+  "updated_at": "2026-08-09T22:21:08.945Z"
 }