- Fix unbound variable errors in install-node.sh and node-path-setup.sh
- Add release-progress.sh for visual release monitoring
- Add release-health-check.sh for comprehensive pre-release validation
- Add check-node-simple.sh as a simpler, more robust Node.js checker
- Create release-improved.sh with better state tracking and progress indicators
- Update release-state.sh with better timestamp tracking
These improvements address issues encountered during beta.13 release:
- Node.js detection failures due to unbound variables
- Lack of visibility into release progress
- No clear way to resume interrupted releases
- Missing pre-flight validation
