Stream Piping and Error Handling in Production

Use pipeline from the stream module instead of .pipe() to ensure proper error propagation and automatic resource cleanup.

The standard .pipe() method does not forward errors. If the source stream errors, the destination remains open, causing memory leaks. stream.pipeline() accepts multiple streams and a callback. It ensures that if any stream in the chain fails, all others are destroyed, and the final callback is called with the error. This is critical for production-grade I/O where file descriptors and sockets are limited.