- Rename npm packages from @kb/* to @hai/* and update all workspace references
- Rename CLI binary from kb to hai and config directory from .kb to .hai
- Update dashboard UI branding, titles, and references from kb to hai
- Update all test files, CI workflows, and documentation to reflect new naming
- Run comprehensive grep verification to ensure no stale kb references remain
- Add thin scrollbar with border-color theme support via standard properties
- Add WebKit scrollbar pseudo-element styles for cross-browser compatibility
- Apply styles to both app/styles.css and public/style.css
- Update board grid to use minmax(260px, 1fr) for minimum column widths
- Replace overflow: hidden with overflow-x: auto for horizontal scrolling
- Add min-width: 260px to column class for consistent sizing
- Add Board test verifying id='board' attribute for scroll targeting
