chore: strengthen backend eslint profile

test/tbank-operations-persistence.e2e-spec.ts

@@ -1,6 +1,7 @@
 import { ConfigService } from '@nestjs/config';
-import { PrismaService } from '../src/prisma/prisma.service';
+
 import { BrokerageOperationsRepository } from '../src/modules/investments/operations/infrastructure/brokerage-operations.repository';
+import { PrismaService } from '../src/prisma/prisma.service';
 
 // Real transactions are the boundary: staged pages never become financial
 // results, and a failed multi-account publication must preserve every old row.
@@ -106,11 +107,12 @@ describe('Operations staging and reconciliation (isolated SQLite)', () => {
           }
         })(),
       ]);
-      for (const snapshot of snapshots)
+      for (const snapshot of snapshots) {
         expect([
           ['10', '10'],
           ['20', '20'],
         ]).toContainEqual(snapshot);
+      }
       await reader.$disconnect();
       await reader.$connect();
       expect(