Verify legacy migration completion

scripts/db-migrate-legacy-consumers.ts

@@ -6,8 +6,9 @@ import { LegacyConsumerMigrationService } from "../src/domain/services/legacy-co
 
 const projectRepository = new ProjectRepository();
 const circuitListRepository = new CircuitListRepository();
+const migrationRepository = new LegacyConsumerMigrationRepository(db);
 const migrationService = new LegacyConsumerMigrationService(
-  new LegacyConsumerMigrationRepository(db)
+  migrationRepository
 );
 
 async function run() {
@@ -30,8 +31,21 @@ async function run() {
     }
   }
 
+  const unmigratedConsumers =
+    await migrationRepository.listUnmigratedConsumers();
+  if (unmigratedConsumers.length > 0) {
+    const withoutCircuitList = unmigratedConsumers.filter(
+      (consumer) => !consumer.circuitListId
+    ).length;
+    throw new Error(
+      `Cutover verification failed: ${unmigratedConsumers.length} legacy consumer(s) remain unmigrated` +
+        ` (${withoutCircuitList} without a circuit list).`
+    );
+  }
+
   console.log("Legacy consumer migration summary:");
   console.table(reports);
+  console.log("Cutover verification passed: all legacy consumers are mapped.");
 }
 
 run().catch((error) => {