Testcontainers: run your tests against real SQL Server and RabbitMQ

A mocked repository test proves your mock works. Testcontainers runs the real SQL Server and RabbitMQ inside the test run, so green means what you think it means.

Going zoneless in Angular: what breaks, and the safe migration order

Going zoneless removes Angular's magic change detection. What actually breaks, why it breaks, and the migration order that keeps the app working at every step.