Sprint 4 execution delivered planned artifacts and integrated outputs into reports and docs.
| ID | Title | Effort | Status | Owner |
|---|---|---|---|---|
| SPR-4-R1 | Core implementation | M | Done | Codex |
| SPR-4-R2 | Documentation + reporting | M | Done | Codex |
Implementation follows Fastify + SQLite + materialized views pattern with cache and freshness metadata.
Sprint 4 deliverables completed and represented in backlog status updates.