saschaspeidel/ha-enisyst — reverse-engineered prompt

Build me an unofficial Home Assistant custom integration for enisyst wallbox chargers that work through eniserv.de. I want to add it from Home Assistant like a normal integration, enter my eniserv email, password, and station ID, then have it automatically find all charging points connected to that station.

For each charger, create useful Home Assistant sensors like current status, readable status text, charging power, current, max current, charged energy, charging time, charging mode, enabled state, OCPP connection, Modbus connection, and firmware version. The values should update live enough to be useful on a dashboard.

The login uses a WordPress style session cookie, so please handle that quietly in the background and refresh it before it expires so I don’t have to keep logging in again. Make it installable as a HACS custom integration and also possible to copy into Home Assistant manually. Look up current Home Assistant integration docs if needed.