Keeps the repo root clean with es24n_conf.py as the sole entry point.
All supporting modules (ui, serial_port, models, redfish, workflow_*)
now live in es24n/. The entry point adds es24n/ to sys.path at startup
so inter-module imports within the package remain unchanged.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
