Why:
- the slice had no operator documentation: no tuning guidance, no failure
procedure, no statement of the proxy timeout requirement.
Changes:
- add docs/runbook.md: startup, deployment steps, provisioning, the INGESTION_*
tuning table with each bound's status code, the proxy read-timeout rule,
/healthz vs /readyz, failure investigation by real event name plus job/event
SQL, retry semantics, and alert thresholds
- link it from the README and note provisioning there
- mark plan 001 Phase 6 done and refresh CLAUDE.md's status paragraph
Impact:
- documentation only
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
