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feat: Implement Policy Engine Evaluation Service and Cache with unit tests
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2025-11-05 07:35:53 +00:00
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src/Findings/StellaOps.Findings.Ledger/TASKS.md
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| LEDGER-29-001 | DONE (2025-11-03) | Findings Ledger Guild | AUTH-POLICY-27-001 | Design ledger & projection schemas (tables/indexes), canonical JSON format, hashing strategy, and migrations. Publish schema doc + fixtures.<br>2025-11-03: Initial PostgreSQL migration added with partitions/enums, fixtures seeded with canonical hashes, schema doc aligned. | Schemas committed; migrations generated; hashing documented; fixtures seeded for CI. |
| LEDGER-29-002 | DONE (2025-11-03) | Findings Ledger Guild | LEDGER-29-001 | Implement ledger write API (`POST /vuln/ledger/events`) with validation, idempotency, hash chaining, and Merkle root computation job.<br>2025-11-03: Minimal web service scaffolded with canonical hashing, in-memory repository, Merkle scheduler stub, request/response contracts, and unit tests for hashing + conflict flows. | Events persisted with chained hashes; Merkle job emits anchors; unit/integration tests cover happy/pathological cases. |
| LEDGER-29-003 | DONE (2025-11-03) | Findings Ledger Guild, Scheduler Guild | LEDGER-29-001 | Build projector worker that derives `findings_projection` rows from ledger events + policy determinations; ensure idempotent replay keyed by `(tenant,finding_id,policy_version)`. | Postgres-backed projector worker and reducers landed with replay checkpointing, fixtures, and tests. |
| LEDGER-29-004 | DOING (2025-11-03) | Findings Ledger Guild, Policy Guild | LEDGER-29-003, POLICY-ENGINE-27-001 | Integrate Policy Engine batch evaluation (baseline + simulate) with projector; cache rationale references.<br>2025-11-04: Projection reducer now consumes policy evaluation output with rationale arrays; Postgres migration + fixtures/tests updated, awaiting Policy Engine API wiring for batch fetch. | Projector fetches determinations efficiently; rationale stored for UI; regression tests cover version switches. |
| LEDGER-29-004 | DONE (2025-11-04) | Findings Ledger Guild, Policy Guild | LEDGER-29-003, POLICY-ENGINE-27-001 | Integrate Policy Engine batch evaluation (baseline + simulate) with projector; cache rationale references.<br>2025-11-04: Remote evaluation service wired via typed HttpClient, cache, and fallback inline evaluator; `/api/policy/eval/batch` documented; `policy_rationale` persisted with deterministic hashing; ledger tests `dotnet test src/Findings/__Tests/StellaOps.Findings.Ledger.Tests/StellaOps.Findings.Ledger.Tests.csproj --no-restore` green. | Projector fetches determinations efficiently; rationale stored for UI; regression tests cover version switches. |
| LEDGER-29-005 | TODO | Findings Ledger Guild | LEDGER-29-003 | Implement workflow mutation handlers (assign, comment, accept-risk, target-fix, verify-fix, reopen) producing ledger events with validation and attachments metadata. | API endpoints enforce business rules; attachments metadata stored; tests cover state machine transitions. |
| LEDGER-29-006 | TODO | Findings Ledger Guild, Security Guild | LEDGER-29-002 | Integrate attachment encryption (KMS envelope), signed URL issuance, CSRF protection hooks for Console. | Attachments encrypted and accessible via signed URLs; security tests verify expiry + scope. |
| LEDGER-29-007 | TODO | Findings Ledger Guild, Observability Guild | LEDGER-29-002..005 | Instrument metrics (`ledger_write_latency`, `projection_lag_seconds`, `ledger_events_total`), structured logs, and Merkle anchoring alerts; publish dashboards. | Metrics/traces emitted; dashboards live; alert thresholds documented. |