trains, wagons,containers and cargoes schema and API

apps/edr-freight-api/src/data-source.ts

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+// apps/edr-freight-api/src/data-source.ts
+import { DataSource } from 'typeorm';
+//import { ensurePostgresSchemas } from './utils/ensure-postgres-schemas'; // adjust path if needed
+
+export const AppDataSource = new DataSource({
+  type: 'postgres',
+  host: 'localhost',
+  port: 5432,
+  username: 'postgres',
+  password: '', // Laragon default: empty
+  database: 'edr_freight',
+  schema: 'freight', // default schema for entities without an explicit schema
+  entities: [__dirname + '/**/*.entity{.ts,.js}'],
+  migrations: [__dirname + '/migrations/*{.ts,.js}'],
+  synchronize: false,
+  logging: true,
+});
+
+// Optional: call ensurePostgresSchemas before initializing
+// But you can also run it separately.