feat: Nuxt 4 compatibility, version tracking, update/diff CLI, and component metadata
- Add Nuxt 4 detection for automatic path resolution (app/ vs root)
- Add .transtrack/versions.json for tracking installed component versions
- Add transtrack-ui update command with --check and --all flags
- Add transtrack-ui diff command to compare local vs package versions
- Add tailwind-preset.js for reusable color theme across projects
- Add meta.json for all 55 components and 63 icons with deps tracking
- Add dependency-resolver for automatic peer dependency detection
- Modify init to detect Nuxt 3/4 and set up correct directory structure
- Modify add to track versions and show missing peer dependencies
- Add MIT LICENSE and comprehensive README with badges
- Fix ESM export (module.exports → export default) in lib/index.js
- Fix installer error message to include missing file path