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>

.github/workflows/evals-periodic.yml

@@ -86,11 +86,16 @@ jobs:
             file: test/skill-e2e-review.test.ts
           - name: e2e-retro
             file: test/skill-e2e-retro.test.ts
-          # e2e-review-attribution is gate-only (all three of its tests are
-          # gate-tier) — deliberately absent here; an all-skip shard would just
-          # burn a container boot weekly.
+          # e2e-review-attribution, e2e-coverage-audit, and e2e-triage are
+          # gate-only (every test they hold is gate-tier) — deliberately absent
+          # here; an all-skip shard would just burn a container boot weekly.
           - name: e2e-workflow
             file: test/skill-e2e-workflow.test.ts
+          # Rehomed from the deleted pre-split monolith: the SDK-harness
+          # ship-idempotency check (periodic; the real-PTY variant runs via
+          # the periodic sharded runner).
+          - name: e2e-ship-idempotency-sdk
+            file: test/skill-e2e-ship-idempotency-sdk.test.ts
           - name: e2e-routing
             file: test/skill-routing-e2e.test.ts
           - name: e2e-codex

.github/workflows/evals.yml

@@ -112,6 +112,14 @@ jobs:
             file: test/skill-e2e-review-attribution.test.ts
           - name: e2e-workflow
             file: test/skill-e2e-workflow.test.ts
+          # Rehomed from the deleted pre-split monolith (its filename never
+          # matched the skill-e2e-* glob, so these gate tests silently never
+          # ran). Both files hold gate-tier tests: review/plan-eng coverage
+          # audits and the /ship failure-ownership triage.
+          - name: e2e-coverage-audit
+            file: test/skill-e2e-coverage-audit.test.ts
+          - name: e2e-triage
+            file: test/skill-e2e-triage.test.ts
           - name: e2e-routing
             file: test/skill-routing-e2e.test.ts
           - name: e2e-codex