- N-4: GitPackIngest's prepare binding carries push_options:
Option<&PushOptions> (parsed (key, value) pairs, verbatim and
un-interpreted; None until the config gate opens) — pinned in
ADR-013 §11 and backend.md's trait description so opening the
config gate later is value-additive, not a trait redesign
- N-5: ls-refs=unborn verification recorded as a rider in
transport.md §ls-refs + tracker task tasks/architecture/
n5-unborn-head-rider.md (unborn fixture, real client, both
substrates; drop the token if it cannot be served — ADR-003)
- review 001: N-4, N-5 marked resolved
verification: cargo test, clippy -D warnings, fmt --check, doc — clean