feat: auto-sync entity names from project documentation ...

- Add sync_names.py: parses proj-ib-lighting-rs485-zarki.yaml,
  updates friendly_names in ibsystem2mqtt.yaml, restarts service
- Add ibsystem-sync-names.path: systemd path watcher on project YAML
- Add ibsystem-sync-names.service: oneshot service running sync_names.py
- Update config.yaml: 85 friendly_names from all devices (ID2-ID41)

Usage: edit /smart-home/proj-ib-lighting-rs485-zarki.yaml → HA updates automatically
Manual: python3 /ibsystem/sync_names.py [--dry-run]

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

feat: IBSystem MQTT bridge migrated to Proxmox LXC 103 (192.168.50.244) ...

- Added systemd service files: ibvunit.service, ibsystem2mqtt.service
- ibvunit connects to RS485 converter at 192.168.50.50:20108
- ibsystem2mqtt depends on ibvunit (Requires=)
- Both services auto-start enabled on new LXC
- Watchdog cron installed: /ibsystem/watchdog.sh
- Old .243 services disabled (HA Docker stays on .243)
- Status: 17 devices, 356 entities, MQTT online, 0 errors

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>