Extract logging to pkg/log for use outside CLI:
- Logger with Debug/Info/Warn/Error levels
- Key-value pairs for structured logging
- Customisable styling and output
- Optional Core framework integration via Service
Enhance pkg/errors with:
- Wrap() and WrapCode() helpers
- Code() for error codes
- Op(), ErrCode(), Message(), Root() extractors
- Standard library wrappers (Is, As, New, Join)
Update pkg/cli/log.go to use pkg/log with CLI styling.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add i18n service wrapping pkg/i18n for translations via cli.T()
- Add log service with levels (quiet/error/warn/info/debug)
- Wire cli.Init() in cmd.Execute() with explicit service names
- Fix main.go to print errors to stderr and exit with code 1
- Update runtime.go to accept additional services via Options
Services use WithName() to avoid name collision since both are
defined in pkg/cli (WithService would auto-name both "cli").
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>