Simple HTTP Server

• Supports HTTP GET and HEAD methods: Handles GET requests to serve file contents and HEAD requests to send file metadata.

• Static file serving: Reads and serves static files from the server directory, with content-length and type headers.

• CGI-like support: Executes server-side programs from a restricted cgi-like directory and returns the output to the client.

• Error handling: Responds with appropriate HTTP status codes for errors, such as 404 for file not found and 501 for unsupported methods.