HA controls + wider layout: toggle lights/switches, cover controls, more sensors
- Backend: call_ha_service() for controlling entities via HA REST API
- Backend: POST /api/ha/control with JWT auth + cache invalidation
- Backend: Parse switches, binary_sensors, humidity, climate entities
- Frontend: HA card now xl:col-span-2 (double width)
- Frontend: Interactive toggles for lights/switches, cover up/stop/down
- Frontend: Temperature + humidity sensors, climate display, binary sensors
- Frontend: Two-column internal layout (controls left, sensors right)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>