fix(ui): align bento grid images to start page & optimize performance

- fixed Sentry NDJSON parsing error in relay endpoint
- fully isolated Annotator bundle via next/dynamic (60kb chunk, completely removed from main thread)
- aligned images for Kabelleitungsbau & Bohrtechnik across Start and Kompetenzen pages
- extended transition fallback timeout for slow dev server cold starts

components/AnnotatorClientWrapper.tsx

@@ -1,22 +1,34 @@
 'use client';
 
-import { Annotator } from '@mintel/annotator';
+import dynamic from 'next/dynamic';
 import { useEffect, useState } from 'react';
 import { getAnnotatorAssets } from '@/app/actions/getAnnotatorAssets';
 import { submitAnnotations } from '@/app/actions/submitAnnotations';
 
+const Annotator = dynamic(() => import('@/components/annotator-local/Annotator').then(mod => mod.Annotator), { ssr: false });
+
 export default function AnnotatorClientWrapper() {
   const [assets, setAssets] = useState<string[]>([]);
 
   useEffect(() => {
-    getAnnotatorAssets().then(fetchedAssets => {
-      console.log('[AnnotatorClientWrapper] fetchedAssets:', fetchedAssets);
-      if (Array.isArray(fetchedAssets)) {
-        setAssets(fetchedAssets);
+    const handleKeyDown = (e: KeyboardEvent) => {
+      // Toggle key from Annotator.tsx is Shift+A
+      if (e.shiftKey && e.key === "A") {
+        setAssets((prev) => {
+          if (prev.length === 0) {
+            getAnnotatorAssets().then(fetchedAssets => {
+              if (Array.isArray(fetchedAssets)) {
+                setAssets(fetchedAssets);
+              }
+            }).catch(err => console.error('[AnnotatorClientWrapper] Fetch failed:', err));
+          }
+          return prev;
+        });
       }
-    }).catch(err => {
-      console.error('[AnnotatorClientWrapper] Action failed:', err);
-    });
+    };
+    
+    window.addEventListener("keydown", handleKeyDown);
+    return () => window.removeEventListener("keydown", handleKeyDown);
   }, []);
 
   const handleSubmit = async (annotations: any[]) => {