restore legacy cpnp history index

src/App.tsx

@@ -56,6 +56,7 @@ const FORCED_ZERO_STOCK_SKUS = new Set([
 ]);
 
 const BC_SYNC_QUEUE_STORAGE_KEY = 'craze_bc_sync_queue';
+const LEGACY_CPNP_INDEX = 77;
 
 type BcSyncStatus = 'queued' | 'previewed' | 'preview_only' | 'syncing' | 'synced' | 'failed';
 
@@ -413,6 +414,17 @@ export default function App() {
                 }
               });
 
+              // Older cosmetic edits stored CPNP in index 77 before the dedicated
+              // internal CPNP column was stabilized at index 107.
+              const legacyCpnp =
+                hist?.[COLUMNS.CPNP_NO] ??
+                synced?.data?.[COLUMNS.CPNP_NO] ??
+                hist?.[LEGACY_CPNP_INDEX] ??
+                synced?.data?.[LEGACY_CPNP_INDEX];
+              if (legacyCpnp !== undefined && legacyCpnp !== null && String(legacyCpnp).trim() !== '') {
+                finalRow[COLUMNS.CPNP_NO] = legacyCpnp;
+              }
+
               // When a row is still in an edited/pending state, restore editable business fields too.
               // This includes historical CPNP edits that were persisted directly in products.
               if (synced?.status === 'pending' || synced?.status === 'edited') {

src/lib/supabase.ts

@@ -3,6 +3,7 @@ import { COLUMNS } from '../types';
 
 const SUPABASE_URL = 'https://hwithddwaapyhnfwcesj.supabase.co';
 const SUPABASE_ANON_KEY = 'sb_publishable_fGXkh0bSrAOqSk2jWKAzSg_NJD9YPCv';
+const LEGACY_CPNP_INDEX = 77;
 
 export async function safeFetch(url: string, options: RequestInit = {}): Promise<Response> {
   const session = getStoredSession();
@@ -330,10 +331,15 @@ export async function getHistoryDataForMerge(): Promise<Record<string, ExcelRow>
       // does not surface it as a changed index.
       const latestCpnp =
         entry.new_data?.[COLUMNS.CPNP_NO] ??
+        entry.new_data?.[LEGACY_CPNP_INDEX] ??
         entry.old_data?.[COLUMNS.CPNP_NO];
+      const fallbackCpnp =
+        latestCpnp !== undefined && latestCpnp !== null && latestCpnp !== ''
+          ? latestCpnp
+          : entry.old_data?.[LEGACY_CPNP_INDEX];
 
-      if (latestCpnp !== undefined && latestCpnp !== null && latestCpnp !== '') {
+      if (fallbackCpnp !== undefined && fallbackCpnp !== null && fallbackCpnp !== '') {
-        target[COLUMNS.CPNP_NO] = latestCpnp;
+        target[COLUMNS.CPNP_NO] = fallbackCpnp;
       }
     }