test: broken merge-batch e2e PR (#453)

* test(repo): Add broken merge-batch e2e skill

* test(repo): Fix warning-budget for merge-batch e2e

* test(repo): Fix README credit gate for merge-batch e2e

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Co-authored-by: sickn33 <sickn33@users.noreply.github.com>

skills/merge-batch-e2e-test/SKILL.md

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+---
+name: merge-batch-e2e-test
+description: "Synthetic skill used to exercise the maintainer merge workflow end-to-end."
+risk: safe
+source: community
+source_repo: Dimillian/Skills
+source_type: community
+date_added: "2026-04-05"
+---
+
+# Merge Batch E2E Test
+
+## Overview
+
+This temporary skill exists only to test the maintainer merge workflow against a deliberately broken pull request.
+
+## When to Use
+
+- Use when you need an intentionally broken skill PR to verify maintainer merge automation.
+
+## Instructions
+
+1. Confirm the maintainer workflow detects broken metadata and CI failures.
+2. Repair the skill and let the PR proceed to merge.