fix issues in core

core/racing/domain/entities/SponsorshipRequest.test.ts

@@ -8,9 +8,9 @@ describe('SponsorshipRequest', () => {
   const validProps = {
     id: 'request-123',
     sponsorId: 'sponsor-456',
-    entityType: 'driver',
+    entityType: 'driver' as SponsorableEntityType,
     entityId: 'driver-789',
-    tier: 'main',
+    tier: 'main' as SponsorshipTier,
     offeredAmount: validMoney,
   };