Fix null safety issues

src/components/moderation/SubmissionItemsList.tsx

@@ -56,12 +56,19 @@ export const SubmissionItemsList = memo(function SubmissionItemsList({
 
       if (itemsError) throw itemsError;
 
-      // Transform to expected format
-      const transformedItems = (itemsData || []).map((item: any) => ({
-        ...item,
-        item_data: item.entity_data || {},
-        entity_data: item.entity_data
-      }));
+      // Transform to expected format with better null handling
+      const transformedItems = (itemsData || []).map((item: any) => {
+        // Ensure entity_data is at least an empty object, never null
+        const safeEntityData = item.entity_data && typeof item.entity_data === 'object' 
+          ? item.entity_data 
+          : {};
+        
+        return {
+          ...item,
+          item_data: safeEntityData,
+          entity_data: item.entity_data // Keep original for debugging
+        };
+      });
 
       // Check for photo submissions (using array query to avoid 406)
       const { data: photoData, error: photoError } = await supabase

src/components/moderation/ValidationSummary.tsx

@@ -30,9 +30,12 @@ export function ValidationSummary({ item, onValidationChange, compact = false, v
   // Helper to extract the correct entity ID based on entity type
   const getEntityId = (
     itemType: string, 
-    itemData: SubmissionItemData, 
+    itemData: SubmissionItemData | null | undefined, 
     fallbackId?: string
   ): string | undefined => {
+    // Guard against null/undefined itemData
+    if (!itemData) return fallbackId;
+    
     // Try entity-specific ID fields first
     const entityIdField = `${itemType}_id`;
     const typedData = itemData as unknown as Record<string, unknown>;
@@ -84,7 +87,7 @@ export function ValidationSummary({ item, onValidationChange, compact = false, v
       const result = await validateEntityData(
         item.item_type as ValidEntityType,
         { 
-          ...item.item_data, 
+          ...(item.item_data || {}), // Add null coalescing
           id: getEntityId(item.item_type, item.item_data, item.id)
         }
       );

src/components/moderation/displays/RichParkDisplay.tsx

@@ -17,6 +17,9 @@ export function RichParkDisplay({ data, actionType, showAllFields = true }: Rich
   const [propertyOwner, setPropertyOwner] = useState<string | null>(null);
   
   useEffect(() => {
+    // Guard against null/undefined data
+    if (!data) return;
+    
     const fetchRelatedData = async () => {
       // Fetch location
       if (data.location_id) {

src/components/moderation/displays/RichRideDisplay.tsx

@@ -22,6 +22,9 @@ export function RichRideDisplay({ data, actionType, showAllFields = true }: Rich
   const [showTechnical, setShowTechnical] = useState(false);
   
   useEffect(() => {
+    // Guard against null/undefined data
+    if (!data) return;
+    
     const fetchRelatedData = async () => {
       if (data.park_id) {
         const { data: parkData } = await supabase