Fix: Resolve TypeScript errors

src/lib/entitySubmissionHelpers.ts

@@ -564,11 +564,11 @@ export async function submitParkUpdate(
       submission_id: submissionData.id,
       item_type: 'park',
       action_type: 'edit',
-      item_data: {
+      item_data: JSON.parse(JSON.stringify({
         ...extractChangedFields(data, existingPark),
         park_id: parkId,  // Always include for relational integrity
-        images: processedImages as unknown as Json
-      },
+        images: processedImages
+      })) as Json,
       original_data: JSON.parse(JSON.stringify(existingPark)),
       status: 'pending' as const,
       order_index: 0