- Refactor parsers/udp-miotiq.md around the pipe-separated descriptor format used on Miotiq side.
- Document the full 83-byte NebuleAir Pro 4G descriptor (PM, gases, noise, weather, power, status).
- Keep legacy MobileAir 17B binary format for reference.
- Add formats/iso-pollutant-codes.md placeholder for AirCarto ISO 7168 code mapping.
- Open TODOs: flag W semantics, endianness, signed battery_current, MobileAir migration.