Add comprehensive styling system for consistent DX across commands:
- Tailwind colour palette as named constants (30+ colours)
- Unicode symbols for status indicators, arrows, tree chars
- New styles: InfoStyle, AccentStyle, CodeStyle, NumberStyle, etc.
- Box styles with rounded borders for panels
- Helper functions: Success(), Error(), StatusLine(), KeyValue(), etc.
- Table struct with auto-width column rendering
Also:
- Fix cmd/build to use shared styles instead of duplicating
- Update cmd/dev/dev_health to use StatusLine() helper
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace leaanthony/clir with spf13/cobra across all command packages.
This provides better subcommand handling, built-in shell completion,
and a more widely-used CLI framework.
Changes:
- Update cmd/core.go with cobra root command and completion support
- Convert all subcommand packages to use *cobra.Command
- Use init() functions for flag registration instead of inline setup
- Maintain all existing functionality and flag behaviors
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>