The wire protocol is re-specified as DongLoRa Protocol v2 (see PROTOCOL.md). Every type_id, tag-correlation rule, and field layout is incompatible with 0.1.0.
* Add PROTOCOL.md as the normative spec for the v2 wire format.
* Replace framing.rs with a streaming FrameDecoder that emits (type_id, tag, payload) triples on each COBS-delimited, CRC-checked frame.
* Split the single-file lib.rs into dedicated modules: frame, commands, events, errors, modulation, info, crc, chip_id. Re-exports preserve convenience imports at the crate root.
* Replace RadioConfig / Bandwidth with a Modulation enum covering LoRa, FSK/GFSK, LR-FHSS, and FLRC, each with its own typed parameter struct.
* Add TxFlags, RxOrigin, SetConfigResult, OkPayload to model v2 response shapes, and RadioChipId for GET_INFO.
* Rewrite fuzz corpus: replace the 4 cobs_* / command_roundtrip targets with decoder_feed, frame_roundtrip, lora_config_roundtrip, and parse_device_message; drop parse_radio_config.
* Expand proptest and mutation-killer coverage for the new wire shape.
* Rewrite canonical-byte test vectors against the v2 spec.
Adds tests/mutation_killers.rs with six targeted tests derived from
cargo-mutants findings: cad_enabled true/false paths, Transmit
with-config boundary, CobsDecoder::reset behaviour, empty-frame
handling, and the cobs_encode_response success path.
Three mutants remain as provably equivalent — the justfile excludes
them by exact regex so any genuinely new mutant on the same line will
still surface. Updates test-miri to also run the integration tests
(proptest stays skipped because its file-persistence layer calls
getcwd). Gitignore picks up mutants.out / mutants.out.old.
cargo mutants: 89 caught, 9 unviable, 0 missed.
swaits