Add REPL bootstrapper and associated npm command

package.json

@@ -24,6 +24,7 @@
     "test:integration:ci": "npm run migrate:test:ci && dotenv -e ci/.env.ci -- jest --testPathPattern 'tests/integration/' --runInBand",
     "test:cov": "jest --testPathPattern 'tests/unit/' --coverage",
     "test:e2e": "jest --config ./test/jest-e2e.json",
+    "repl": "docker exec -it v3-user-api npm run start -- --entryFile repl",
     "migrate": "docker exec v3-user-api sh -c 'npx prisma migrate deploy'",
     "migrate:dev": "docker exec v3-user-api sh -c 'npx prisma migrate dev'",
     "migrate:test": "dotenv -e .env.test -- npx prisma migrate deploy",

src/repl.ts

@@ -0,0 +1,7 @@
+import { repl } from '@nestjs/core';
+import { AppModule } from './app.module';
+
+async function bootstrap() {
+  await repl(AppModule);
+}
+bootstrap();