fix: hooks order violation in DeadlineResolveDialog causing crash

useMemo was called after early return (when deadline=null), violating
React Rules of Hooks. Moved all hooks before the conditional return.

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

src/modules/registratura/components/deadline-resolve-dialog.tsx

@@ -30,9 +30,7 @@ export function DeadlineResolveDialog({ open, deadline, onOpenChange, onResolve
   const [resolution, setResolution] = useState<DeadlineResolution>('completed');
   const [note, setNote] = useState('');
 
-  if (!deadline) return null;
-
-  const def = getDeadlineType(deadline.typeId);
+  const def = deadline ? getDeadlineType(deadline.typeId) : undefined;
 
   // "intrerupt" option only for avize deadlines that have a chain (interruption mechanism)
   const filteredOptions = useMemo(() => {
@@ -45,6 +43,8 @@ export function DeadlineResolveDialog({ open, deadline, onOpenChange, onResolve
   // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [def?.chainNextTypeId, def?.category]);
 
+  if (!deadline) return null;
+
   // Chain fires on completed, aprobat-tacit, or intrerupt (for avize interruption)
   const hasChain = def?.chainNextTypeId && (
     resolution === 'completed' || resolution === 'aprobat-tacit' || resolution === 'intrerupt'