feat: Add MongoIdempotencyStoreOptions for MongoDB configuration

feat: Implement BsonJsonConverter for converting BsonDocument and BsonArray to JSON

fix: Update project file to include MongoDB.Bson package

test: Add GraphOverlayExporterTests to validate NDJSON export functionality

refactor: Refactor Program.cs in Attestation Tool for improved argument parsing and error handling

docs: Update README for stella-forensic-verify with usage instructions and exit codes

feat: Enhance HmacVerifier with clock skew and not-after checks

feat: Add MerkleRootVerifier and ChainOfCustodyVerifier for additional verification methods

fix: Update DenoRuntimeShim to correctly handle file paths

feat: Introduce ComposerAutoloadData and related parsing in ComposerLockReader

test: Add tests for Deno runtime execution and verification

test: Enhance PHP package tests to include autoload data verification

test: Add unit tests for HmacVerifier and verification logic

docs/reachability/DELIVERY_GUIDE.md

@@ -57,7 +57,7 @@ This guide translates the deterministic reachability blueprint into concrete wor
 | **402** | Replay & Attest | Manifest v2, DSSE envelopes, Authority/Rekor publishing | Replay packs include hashes + analyzer fingerprint; DSSE statements passed integration; Rekor mirror updated |
 | **403** | Policy & Explain | VEX generation, SPL predicates, UI/CLI explainers | Policy engine uses reachability states, CLI `stella graph explain` returns signed paths, UI shows explain drawer |
 
-Each sprint is two weeks; refer to `docs/implplan/SPRINT_401_reachability_evidence_chain.md` (new) for per-task tracking.
+Each sprint is two weeks; refer to `docs/implplan/SPRINT_0401_0001_0001_reachability_evidence_chain.md` (new) for per-task tracking.
 
 ---