- Add Windows PowerShell install script (install.ps1)
- Install slash commands for both Claude Code and OpenCode
- Update OpenCode README with install script instructions
- Simplify UpdateBanner to use same install command for both platforms
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
## Summary
Complete code review system for reviewing git diffs with annotations.
### Features
- Interactive diff viewer with split/unified views
- Line-level annotation system
- Diff type selector (uncommitted, last commit, vs main branch)
- Dynamic default branch detection
- Empty state handling
- Simplified UX with streamlined feedback flow
Closes#51Closes#56