- New Z2MLightOutputTarget storage, processor, editor and routes for
Zigbee2MQTT light entities (shares the HA-Light editor UI via the new
light-target-editor module)
- Replace global MQTTService/MQTTConfig with per-source MQTTManager +
MQTTRuntime; thread mqtt_source_id through Z2M targets, DIY MQTT
devices, and the automation engine
- Migrate legacy single-broker YAML/env config to a "Default Broker"
MQTTSource on startup (core/mqtt/legacy_migration.py) and drop the
obsolete core/mqtt/mqtt_service.py
- Refresh /api/v1/system integration status to surface every MQTT source
- Extract shared light-target editor and refactor OutputTargetStore +
output_targets routes around typed factories / auto-registry
- Modal CSS polish, locale strings, and storage/bindable test coverage
