Ring 4 retires the legacy call-resolution DAG. With the legacy resolver
gone (RING4-1 #942, RING4-2 #943), shadow mode has nothing to dual-run
against, so the remaining shadow-mode artifacts are dead code.
- Delete gitnexus-shared/src/scope-resolution/shadow/{diff,aggregate}.ts
(pure parity comparison logic) and its gitnexus-shared barrel exports.
- Delete the static parity dashboard (gitnexus/shadow-parity-dashboard/),
which also removes the last GITNEXUS_SHADOW_MODE reference in the repo.
- Delete the shadow-mode unit tests (gitnexus/test/unit/shadow/).
- Scrub stale doc comments referencing the shadow harness / parity
dashboard / removed legacy run (csharp/php/python/typescript index.ts,
evidence.ts, module-scope-index.ts).
Already removed by RING4-1/-2 (verified): the shadow harness source and
GITNEXUS_SHADOW_MODE env handling; no CI job published dashboard artifacts.
Historical parity records preserved per acceptance: the CHANGELOG entry
(#918, #923, #951, #972) and the ci.yml RING4-1 note remain. Last
documented parity state is that historical coverage — no live
.gitnexus/shadow-parity/ run data exists in-tree (runtime output only).
Closes#944.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
