fix: count full visitor per museum for combo tickets

Bundle tickets grant access to multiple museums, so each museum
should count 1 visitor — not 0.5. Revenue split remains 50/50.

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

server/src/services/etlSync.ts

@@ -77,7 +77,7 @@ export function aggregateTransactions(sales: ERPSaleRecord[]): AggregatedRecord[
         }
 
         const visitors = isB2C ? product.UnitQuantity : product.PeopleCount;
-        entry.Visits += visitors * split;
+        entry.Visits += visitors; // each museum in a combo counts the full visitor
         entry.Tickets += product.UnitQuantity * split;
         entry.GrossRevenue += product.TotalPrice * split;
         entry.NetRevenue += (product.TotalPrice - product.TaxAmount) * split;