- AssignDevice derives the Shelly MQTT prefix from the mDNS service instance name
(the device id) instead of the slugified topic identifier (which carries the
_shelly._tcp suffix); non-Shelly devices get no prefix.
- IngestDiscoveryMessage broadcasts DeviceDiscovered only on first creation, not on
every retained/periodic re-publish.
- The generic Confirm modal can target its event at the opening component (->to),
so a shared event name can't be caught by an unrelated component.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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