pkrumins/node-tree-kill

**Summary** The `tree-kill` module provides a simple API to terminate an entire process tree—including the root process—by sending a chosen signal (default `SIGTERM`) to the process and all of its descendants. It is aimed at developers who need to cleanly clean‑up child processes on Linux, macOS, or Windows, such as when shutting down servers, test environments, or any applications that spawn hierarchical child processes.