entities, init schema migration

typeorm.config.ts

@@ -0,0 +1,18 @@
+import { DataSource } from 'typeorm';
+import { ConfigService } from '@nestjs/config';
+import { config } from 'dotenv';
+
+config();
+
+const configService = new ConfigService();
+
+export default new DataSource({
+  type: 'postgres',
+  host: configService.get('DB_HOST'),
+  port: +configService.get('DB_PORT'),
+  username: configService.get('DB_USER'),
+  password: configService.get('DB_PASSWORD'),
+  database: configService.get('DB_NAME'),
+  entities: ['dist/**/*.entity.js'],
+  migrations: ['migrations/**/*'],
+});