328442554c
Restructured as a proper technical architecture document: - Added Observability section (correlation IDs, structured errors, debugging) - Reorganized into logical flow: overview, request flow, contracts, internals - Removed stale rollback/backup references - Updated all references in README, CLAUDE.md, PROJECT.md, STATE.md Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>