docs: update changelog for v0.1.66

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: github-actions[bot]

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.1.66
+
+### Internal/Other Changes
+
+- Updated bundled Claude CLI to version 2.1.119
+
 ## 0.1.65
 
 ### New Features