codegraph-cli

Fixed

• Version consistency across package, README badge, and __init__.py
• Placeholder GitHub URLs in documentation
• config.json references corrected to config.toml in user guide
• GroqProvider now uses requests library instead of shelling out to curl

Added

• GitHub Actions CI workflow (test + lint on push/PR)
• CONTRIBUTING.md for open-source contributors
• Rich-based terminal output in chat REPL (replaces raw ANSI escapes)

Changed

• Architecture docs updated to reflect tree-sitter parser (replaces ast references)