Enclosure entities set via_device to a parent hub id that nothing defined,
so Home Assistant showed an 'Unnamed Device'. Publish a hub connectivity
binary_sensor ('Status', online/offline from the LWT topic) that defines the
parent device with a proper name, so the per-enclosure devices nest cleanly
under 'JBOD Monitor (<node>)'.
- enclosure: fetch SES element descriptor page (0x07) and label temp/fan/
psu/voltage elements with human-readable names
- temps service + /api/temps: per-enclosure hotspot (max across SES sensors
and housed drive temps) plus named SES sensor list
- mqtt_publisher: paho-mqtt with HA discovery (device per enclosure, hotspot
+ per-sensor entities), LWT availability, opt-in via MQTT_HOST
- secrets: OpenBao KV v2 reader; MQTT creds sourced from secret/home_assistant
with env fallback
- compose/requirements/README updated
