feat: implement bank accounts, branches, and banks modules with CRUD operations

- Added BankAccountsController, BankAccountsService, and related DTOs for managing bank accounts.
- Implemented BankBranchesController, BankBranchesService, and related DTOs for managing bank branches.
- Created BanksController and BanksService for retrieving bank information.
- Integrated Prisma for database operations across all modules.
- Added response mapping for consistent API responses.

src/modules/bank-accounts/bank-accounts.module.ts

@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common'
+import { PrismaModule } from '../../prisma/prisma.module'
+import { BankAccountsController } from './bank-accounts.controller'
+import { BankAccountsService } from './bank-accounts.service'
+
+@Module({
+  imports: [PrismaModule],
+  controllers: [BankAccountsController],
+  providers: [BankAccountsService],
+})
+export class BankAccountsModule {}