evals: kill the 3,372-line zombie monolith; revive 4 never-run tests

test/skill-e2e.test.ts survived the v1.56 split as a zombie: the paid
glob needs the skill-e2e-* hyphen, so with EVALS=1 NOTHING has executed
it for ~8 releases — and it held the ONLY implementations of four
map-registered tests: review-coverage-audit (gate), plan-eng-coverage-
audit (gate), ship-triage (gate), ship-idempotency (periodic). Three
gate tests silently never ran — the exact 0%-execution class this
branch exists to kill.

Rehomed into test/skill-e2e-coverage-audit.test.ts, -triage.test.ts, and
-ship-idempotency-sdk.test.ts with bodies byte-identical modulo collector
wiring and fixture extraction (drift observed in the skills since v1.56
is DOCUMENTED in each header, not fixed — their first paid run in 8
releases must attribute failures to drift, not to this move). All 24
other monolith names were true duplicates of the split files — dropped
with the monolith. Matrix rows added to both eval workflows; the paid
glob's zombie-exclusion is now a commented regression pin.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

test/skill-e2e-ship-idempotency.test.ts

@@ -11,8 +11,9 @@
  *   4. Does NOT append a duplicate CHANGELOG [0.0.2] entry
  *   5. Does NOT create a new "chore: bump version" commit
  *
- * Why real-PTY: the existing ship-idempotency test in skill-e2e.test.ts
- * uses the SDK harness with a synthetic prompt asking the agent to "run
+ * Why real-PTY: the ship-idempotency test in
+ * test/skill-e2e-ship-idempotency-sdk.test.ts uses the SDK harness with a
+ * synthetic prompt asking the agent to "run
  * ONLY the idempotency checks." This test exercises the actual /ship
  * skill end-to-end against a real git fixture so a regression that
  * silently re-bumps despite the check passing would be caught.