- exit-propagation drives the runner's real strict verdict
(BunTestOutputClassifier + strictTestExitCode); delete the unused
shardRunLooksTruncated predicate.
- delete skill-coverage-matrix registry + its gate (nothing reads it; the
floor already iterates skillCensus()).
- delete touchfiles-facade export-parity tests (Bun fails missing imports
at link time) and the duplicated E2E_TIERS tier-value test.
- delete brain-cache-spec TRANSPORT_DEFAULT_POLICY, SKILL_RUN_RETENTION_DAYS
and the now-unused BrainTrustPolicy type with their literal tests.
AUTOPLAN_PREFLIGHT_BUDGET_BYTES stays: skill-preflight-budget enforces it
against real resolver output.
- delete audit-compliance's JSDoc-comment grep.