v0.22.0

Changelog

• 4084165 Merge pull request #109 from edouard-claude/feat/proxy-double-dash
• 532fa71 Merge pull request #110 from edouard-claude/feat/tee-project-marker
• 60db65f feat: add tee.project_marker to write tee files under the repo root
• e818162 feat: support optional -- separator for snip proxy