When LOGGER.ENABLED is false, setup_logging attaches only a NullHandler
so legacy configs without the key keep current behavior. Document the
option in EN/ES configuration guides and example YAML templates.
- Port playback.py to clean architecture: PlaybackUseCases, parrot_main.py, adn-parrot.py
- Fix critical PEER auth bug: RPTACK/MSTNAK data offsets were off by 1 (5→6) preventing PEER login
- Extract config normalization to shared config_normalizer.py (used by both main and parrot)
Rodrigo Pérez