reverse-skills-max: initial public release (restored, redacted, hardened)

vendor-new/rev-skills/tests/fixtures-dsh/check-errors/re-not-mapping/SKILL.md

@@ -0,0 +1,8 @@
+---
+- 顶层是序列，不是映射
+- top level is a sequence, not a mapping
+---
+
+## 什么时候用
+
+夹具：frontmatter 顶层是列表。DSH 要求解析结果是映射，列表会被忽略。