ADR-021: Delegated-Agent Audit Log Storage
Pick a persistent store for delegated_agent audit log entries. Recommend Grafana Cloud Loki (already adopted by ADR-019, free at pilot scale) for general-purpose audit retention, with a small Mongo audit_logs collection reserved only for the customer-facing 'who did what' query surface once a tenant asks for one.
Observability Stack Research — Pre-MediaPro Pilot
Observability stack selection for sv0-platform: evaluates 10 options (Grafana Cloud, self-hosted LGTM, Datadog, BetterStack, Axiom, SigNoz, New Relic, Honeycomb, Cloudflare, stitched-minimum) against cost, agentic access (MCP availability), portability across Hetzner/Azure-VM/AWS-VM, and free-tier allowances. Pick: Grafana Cloud free + BetterStack free + grafana/mcp-grafana.