Scripts now correctly determine project root from current working
directory instead of calculating relative to script location.
This fixes the issue when scripts are called via ${CLAUDE_PLUGIN_ROOT}.
Also adds CLAUDE.md and CHANGELOG.md for development guidance.
Bumps version to 1.0.3.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
