changelog(claude-skills): add 2026-06-04 no-drift entry for v2.1.162

Appended dated changelog entry confirming frontmatter fields (16) and
bundled skills (10) are fully synchronized with official docs at v2.1.162.

Co-Authored-By: Claude <noreply@anthropic.com>

Author: claude

changelog/best-practice/claude-skills/changelog.md

@@ -241,3 +241,9 @@ No drift detected — frontmatter fields (16) and bundled skills (10) are fully
 ## [2026-06-03 10:03 AM PKT] Claude Code v2.1.161
 
 No drift detected — frontmatter fields (16) and bundled skills (10) are fully synchronized with official docs.
+
+---
+
+## [2026-06-04 10:03 AM PKT] Claude Code v2.1.162
+
+No drift detected — frontmatter fields (16) and bundled skills (10) are fully synchronized with official docs.