Add fast unit test and live integration tests for the scaffold command, including
scenarios for basic usage, flags like --with-tests, --dry-run, and --force.
Remove unused charmbracelet dependencies (bubbles, bubbletea, lipgloss, etc.)
and add testify for assertions. Update go.mod and go.sum accordingly.
- Replace basic CLI chat with Bubble Tea-based TUI featuring viewport, textarea, colored history, and streaming replies.
- Add StreamSilent method to client for TUI integration without live printing.
- Introduce model flag for chat command.
- Update dependencies to include charmbracelet libraries.
- Switch chat command from Bubble Tea TUI to basic CLI with bufio.
- Hardcode Grok model in commands, remove Viper config.
- Stream responses directly in client, remove channel-based streaming.
- Add safe previews/backups in edit, simplify prompts across tools.
- Update git helper and trim unused deps in go.mod.
