Documentation

• AGENTS.md
• CARVE_DESIGN.md
• CHANGELOG.md
• CLAUDE.md
• CODE_OF_CONDUCT.md
• CONTRIBUTING.md
• GIT_RULES.md
• README.md
• RULES.md
• STYLE_CPP.md
• STYLE_SH.md
• TODO.md
• docs/IMPLEMENTATION_PLAN.md
• docs/differential-report.md
• docs/release-website.md
• docs/test-plan.md