fix: exclude compatibility template from flat skill discovery

scripts/validate_skill.py

@@ -12,7 +12,7 @@ assert len(parts) == 2 and parts[1].strip(), "frontmatter must close and body mu
 frontmatter, body = parts
 assert re.search(r"^name:\s*documentation-docusaurus-vssa\s*$", frontmatter, re.M), "wrong skill name"
 assert "description:" in frontmatter, "missing description"
-alias = (ROOT / "compatibility/documentation-docusaurus.md").read_text()
+alias = (ROOT / "templates/documentation-docusaurus.md").read_text()
 assert "name: documentation-docusaurus\n" in alias
 assert "Load `documentation-docusaurus-vssa`" in alias
 assert "documentation-docusaurus-global" in alias