Hide Besucher field for BEO-Sitzung and Technischer Dienst

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/LogbuchForm.tsx

@@ -42,6 +42,7 @@ export default function LogbuchForm({ kuppel, currentUserBeo, editEntry, onSaved
   const [success, setSuccess] = useState(false);
 
   const showObjekte = !NO_OBJEKTE_ARTEN.includes(artFuehrung);
+  const showBesucher = !NO_OBJEKTE_ARTEN.includes(artFuehrung);
   const isSonne = artFuehrung === SONNE_ART;
 
   useEffect(() => {
@@ -196,7 +197,7 @@ export default function LogbuchForm({ kuppel, currentUserBeo, editEntry, onSaved
       </div>
 
       {/* Besucher */}
-      <div>
+      {showBesucher && <div>
         <label className={labelCls}>Anzahl Besucher</label>
         <input
           type="number"
@@ -206,7 +207,7 @@ export default function LogbuchForm({ kuppel, currentUserBeo, editEntry, onSaved
           max={9999}
           className="w-32 px-3 py-3 border-2 border-gray-400 rounded-lg bg-white text-base focus:border-blue-500 focus:outline-none"
         />
-      </div>
+      </div>}
 
       {/* BEOs */}
       <div>