Add docs/rules-conformance.md documenting how the repo conforms to the
vendored canon, the documentation.md vs dependency-free conflict and its
scoped resolution, the domain-mismatched rules that do not apply, and the
conscious deviations. Add docs/package-import-contract-status.md. State
the round-trip law (Lambda1/Lambda2) in DESIGN.md.
Mirror the shared Swift rules canon (rules-swift, commit 4ebb892) into
docs/rules-swift/ as a read-only reference alongside the repo's tailored
docs/rules/. PROVENANCE.md records the source, commit, and what was
included or excluded; the upstream repo's own VCS, CI, and lint tooling
is omitted as machinery rather than rule content.
Exclude the vendored tree from the style gate (scripts/check-style.sh)
and the pre-commit hook: the canon's enforcement docs quote the
forbidden attribution phrases to define them, the same reason the
repo's own enforcement files are already excluded.
Add structured validation diagnostics, JSON and Yams comparison gates, and lazy token/event parsing so production behavior is measured without retaining full intermediate parser arrays.
Add internal parsing events with marks, scalar styles, collection styles, alias events, and anchor/tag metadata. Add golden parser event tests for current block parser behavior.
Closes#2
