Add commission type example image

prisma/migrations/20260131151654_com_6/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "CommissionGuidelines" ADD COLUMN     "exampleImageUrl" TEXT;

prisma/schema.prisma

@@ -399,6 +399,7 @@ model CommissionGuidelines {
   updatedAt DateTime @updatedAt
 
   markdown String
+  exampleImageUrl String?
   isActive Boolean @default(true)
 
   @@index([isActive])