v0.3.4-beta.1

Fixed

• Card: low-battery entities are now correctly included in entity_filter: offline view. Previously the card hardcoded a 20% threshold that diverged from the integration's configurable battery_threshold, causing low-battery entities to be hidden when the configured threshold differed from 20.
• Sensor: group_summary exposes a new low_battery_entities attribute (list of entity IDs flagged as degraded by the coordinator) so the card no longer needs to reconstruct the threshold check.

Changed

• Card: section title for entity_filter: offline renamed from "Offline Entities" to "Problem Entities" since the filter includes offline, stale, and low-battery entities.