New fixture class for the D4 step-0 split (commons-owned; delivered into
catalog's corpus/runner). A nav-golden case is bundle in / expected-read-
context out — the shape that expresses "two conformant implementations MUST
produce an identical read-context" (method-spec §3 Step 1).
- nav-golden-hierarchy/ (positive): depth-first first-seen order, both link
forms (/ = bundle root vs relative), one segment per level, resolved-path
dedup, cycle termination, recursive verdict exclusion, missing-index binds
root alone, flat render.
- nav-golden-escape/ (negative, gate must go red): .. escapes and a
/etc/passwd root-relative trap; conformant returns only valid.md.
Both expected-read-context.md verified byte-for-byte against a conformant
navigator implementing §3 Step 1; the negative case verified to diverge
under a naive navigator.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VUCuNNvnCkayuUDy2WFgeU
Kjell Tore Guttormsen
b6417414c8