Must-pass and must-fail rows from #182's test plan: the flip shape green
under the sentinel, drift and malformed sentinels red with file named, the
D3 fragment-list assertion, and D5 sentinel survival through consumption.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
test/changelog.test.sh drives changelog_fragments (order, marker, absent
dir), changelog_fragment_problem (every rule, file named each time), and
changelog_assemble (both shapes, canonical order, mixed-shape refusals).
test/changelog-assemble.test.sh drives the CLI against constructed trees:
exact-byte writes, provably read-only --check, every refusal from the
spec, the publisher/assembler round trip, and idempotence.
Closes#114.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
