Insert a new Phase 1 (deployment: Compose + Traefik on a server, marked
Done) between the base project and the OTel concepts phase, and shift
the old phases 1-10 to 2-11. Update summary, intro, README and CLAUDE.md
references (spoiler rules now target Phase 9, the bottleneck hunt).
Add docker-compose.traefik.yml: an override that fronts the gateway with
Traefik and Let's Encrypt and removes all other published host ports.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Roadmap, phase specs, pathology catalog, and CLAUDE.md establishing
Ledgerline as an observability learning project built on a deliberately
imperfect seven-service payments backend.