/typescript-e2e-testing
15E2E and integration testing for TypeScript/NestJS projects using Jest, supertest, and real infrastructure via Docker (Kafka, PostgreSQL, MongoDB, Redis) with the Given-When-Then pattern. Use whenever the user is working on `.e2e-spec.ts` files or anything under `test/e2e/`, or asks to set up, write, review, run, debug, or optimize E2E or integration tests — including flaky tests, docker-compose for tests, Kafka/Redpanda consumers, test isolation, or GWT compliance.
