Node-RED Environment Variable Reader

This package provides a dedicated Node-RED node (`process-env`) for retrieving environment variables from the server process where Node-RED is executing. It serves as a fundamental utility for integrating Node-RED flows with their host environment, enabling external configuration without modifying the flow directly. The node, currently at stable version 1.0.2, simplifies accessing `process.env` values compared to using a generic Function node. Its release cadence is typically driven by bug fixes or minor compatibility updates. A key differentiator is its straightforward configuration within the Node-RED editor, allowing users to specify the environment variable key directly or infer it from incoming message properties (`payload` or `topic`), with a clear order of precedence. This makes it a go-to solution for parameterizing Node-RED applications.