v1.91.9.0 feat: test value bar in plan-eng-review, review, qa and ship, plus /test-audit (#2998)

SKILL.md

@@ -200,6 +200,7 @@ quality gates that produce better results than answering inline.
 - User asks to just report bugs without fixing → invoke `/qa-only`
 - User asks to review code, check the diff, pre-landing review, "look at my changes" → invoke `/review`
 - User asks to find code worth sharing, shared-code extractions, or duplication worth consolidating → invoke `/deslop-shared-libs`
+- User asks to audit, prune or find low-value tests in the existing suite → invoke `/test-audit`
 - User asks about visual polish, design audit of a live site, "this looks off" → invoke `/design-review`
 - User asks to audit the live developer experience, time-to-hello-world → invoke `/devex-review`
 - User asks to ship, deploy, push, create a PR, "let's land this", "send it" → invoke `/ship`