Rewrote docs/features.md from scratch as authoritative feature inventory
(1255 lines, every claim verified against source files).
Audited README.md and architecture.md against repo — fixed 19 stale
references: K8s Secrets status, issuer counts, dashboard page counts,
CI thresholds, missing connectors in Mermaid diagrams, OpenAPI operation
count, GetCACertPEM behavior, and V2/V4 roadmap accuracy.
Also includes related fixes discovered during audit:
- Scheduler skips expired/failed/revoked certs from auto-renewal
- Seed demo expiry dates moved outside 31-day scheduler query window
- Agent pages use correct last_heartbeat_at field name
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>