Flash Socket Policy File Server

The `policyfile` package provides a server designed to respond to Adobe Flash Player's cross-domain socket policy requests. It allows developers to specify which origins are permitted to connect to a Flash application, effectively managing security for older Flash-based projects. The current stable version is 0.0.6, indicating a very early stage of development, and it appears to have seen no significant updates in over a decade. Its release cadence is effectively non-existent. A key differentiator was its ability to either run as a dedicated server, typically on port 843, or integrate inline with an existing HTTP server (e.g., on port 80) to handle policy requests when Flash Player falls back from its primary policy port. This package is built directly on Node.js's native `net` and `http` modules. However, with Adobe Flash Player reaching End-of-Life in 2020, this package is now largely obsolete and should not be used for new projects or in production environments.