- iso-pollutant-codes.md: code ISO_17 = CO2 (ppm), sentinelle 0xFFFF - udp-miotiq.md: ISO_17 consomme les 2 octets reserved (offset 81), trame inchangee a 83 octets, retrocompat (0 = anciens fw) - json-payload.md: tableau polluants, note sentinelle, exemple Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>