Enhance implementation

[aryanmehrotra]

Enhancements

1. Removed File Mapping
   The server no longer creates a map of files, streamlining the file-serving process.

2. 404 Status for Missing Files
   If a requested file is not found, the server now returns a 404 status code, improving error handling.

3. Default Directory Update
   The default directory for serving static files has been changed to static.

   • To customize this directory set the STATIC_DIR_PATH environment variable.