Multi-file diff support #1
Description
Currently diffuse-tui compares two individual files. Support comparing directories or multiple file pairs.
Desired behavior:
- Accept two directories as input
- Show a file picker/list view before the diff view
- Navigate between file pairs with keyboard shortcuts
- Show file status (added/modified/deleted) in the list
Tech context: Node.js terminal UI using blessed/blessed-contrib or similar. Currently renders side-by-side diff with ANSI colors.