- Add fmt-check target for gofmt format verification without modifying files
- Add hooks target to install pre-commit git hook
- Update check target to include fmt-check (check: fmt-check lint test)
- Remove redundant gofmt check from lint target (now in fmt-check)
- Add .PHONY declarations for all phony targets
- Update tools target to use go install
- Rewrite logger package to use slog with LevelVar for dynamic levels
- Update all packages to use *slog.Logger instead of *zerolog.Logger
- Use TextHandler for TTY (dev), JSONHandler for production
- Add make check target (runs lint + test)
- Add make test target
