Persist transaction statuses to localStorage

Add persistence for transaction statuses to localStorage in ModerationQueue and SubmissionReviewManager components. This ensures that transaction statuses (processing, timeout, cached, completed, failed) are preserved across page refreshes, providing a more robust user experience during active transactions.

src/components/moderation/ModerationQueue.tsx

@@ -9,6 +9,7 @@ import { useUserRole } from '@/hooks/useUserRole';
 import { useAuth } from '@/hooks/useAuth';
 import { getErrorMessage } from '@/lib/errorHandler';
 import { supabase } from '@/lib/supabaseClient';
+import * as localStorage from '@/lib/localStorage';
 import { PhotoModal } from './PhotoModal';
 import { SubmissionReviewManager } from './SubmissionReviewManager';
 import { ItemEditDialog } from './ItemEditDialog';
@@ -76,7 +77,10 @@ export const ModerationQueue = forwardRef<ModerationQueueRef, ModerationQueuePro
   
   // UI-only state
   const [notes, setNotes] = useState<Record<string, string>>({});
-  const [transactionStatuses, setTransactionStatuses] = useState<Record<string, { status: 'idle' | 'processing' | 'timeout' | 'cached' | 'completed' | 'failed'; message?: string }>>({});
+  const [transactionStatuses, setTransactionStatuses] = useState<Record<string, { status: 'idle' | 'processing' | 'timeout' | 'cached' | 'completed' | 'failed'; message?: string }>>(() => {
+    // Restore from localStorage on mount
+    return localStorage.getJSON('moderation-queue-transaction-statuses', {});
+  });
   const [photoModalOpen, setPhotoModalOpen] = useState(false);
   const [selectedPhotos, setSelectedPhotos] = useState<PhotoItem[]>([]);
   const [selectedPhotoIndex, setSelectedPhotoIndex] = useState(0);
@@ -111,6 +115,11 @@ export const ModerationQueue = forwardRef<ModerationQueueRef, ModerationQueuePro
   // Offline detection state
   const [isOffline, setIsOffline] = useState(!navigator.onLine);
   
+  // Persist transaction statuses to localStorage
+  useEffect(() => {
+    localStorage.setJSON('moderation-queue-transaction-statuses', transactionStatuses);
+  }, [transactionStatuses]);
+  
   // Offline detection effect
   useEffect(() => {
     const handleOnline = () => {

src/components/moderation/SubmissionReviewManager.tsx

@@ -7,6 +7,7 @@ import { invokeWithTracking } from '@/lib/edgeFunctionTracking';
 import { moderationReducer, canApprove, canReject, hasActiveLock } from '@/lib/moderationStateMachine';
 import { useLockMonitor } from '@/lib/moderation/lockMonitor';
 import { useTransactionResilience } from '@/hooks/useTransactionResilience';
+import * as localStorage from '@/lib/localStorage';
 import { 
   fetchSubmissionItems, 
   buildDependencyTree, 
@@ -84,8 +85,17 @@ export function SubmissionReviewManager({
     message: string;
     errorId?: string;
   } | null>(null);
-  const [transactionStatus, setTransactionStatus] = useState<'idle' | 'processing' | 'timeout' | 'cached' | 'completed' | 'failed'>('idle');
-  const [transactionMessage, setTransactionMessage] = useState<string | undefined>();
+  const [transactionStatus, setTransactionStatus] = useState<'idle' | 'processing' | 'timeout' | 'cached' | 'completed' | 'failed'>(() => {
+    // Restore from localStorage on mount
+    const stored = localStorage.getJSON<{ status: string; message?: string }>(`moderation-transaction-status-${submissionId}`, { status: 'idle' });
+    const validStatuses = ['idle', 'processing', 'timeout', 'cached', 'completed', 'failed'];
+    return validStatuses.includes(stored.status) ? stored.status as 'idle' | 'processing' | 'timeout' | 'cached' | 'completed' | 'failed' : 'idle';
+  });
+  const [transactionMessage, setTransactionMessage] = useState<string | undefined>(() => {
+    // Restore from localStorage on mount
+    const stored = localStorage.getJSON<{ status: string; message?: string }>(`moderation-transaction-status-${submissionId}`, { status: 'idle' });
+    return stored.message;
+  });
   
   const { toast } = useToast();
   const { isAdmin, isSuperuser } = useUserRole();
@@ -116,6 +126,14 @@ export function SubmissionReviewManager({
     }
   });
 
+  // Persist transaction status to localStorage
+  useEffect(() => {
+    localStorage.setJSON(`moderation-transaction-status-${submissionId}`, {
+      status: transactionStatus,
+      message: transactionMessage,
+    });
+  }, [transactionStatus, transactionMessage, submissionId]);
+  
   // Auto-claim on mount
   useEffect(() => {
     if (open && submissionId && state.status === 'idle') {