RED. Nine sections declared by `sts-container.xml`, a hand-written fixture that
carries no sentence from any source: Arm B delivers 8 (the orphan check takes
the container chapter) and the shipped build defaults deliver 3 (Arm F folds
every level below the shallowest repeated one). That is 2 761 -> 2 051 -> 23 on
R761 in miniature, measured.
`find_candidates` already skips both steps for `outline_marks`, which is why
the PDF bookmark arm reaches 2 762 of 2 761. These tests pin the same route for
the one row whose reader wrote the heading itself, under its OWN rule name, and
pin that no other row reaches it: the same markdown from a `.md` file is a
guess and keeps `rule:heading`.
7 failed, 1 passed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
