feat: Add initial implementation of Vulnerability Resolver Jobs

- Created project for StellaOps.Scanner.Analyzers.Native.Tests with necessary dependencies.
- Documented roles and guidelines in AGENTS.md for Scheduler module.
- Implemented IResolverJobService interface and InMemoryResolverJobService for handling resolver jobs.
- Added ResolverBacklogNotifier and ResolverBacklogService for monitoring job metrics.
- Developed API endpoints for managing resolver jobs and retrieving metrics.
- Defined models for resolver job requests and responses.
- Integrated dependency injection for resolver job services.
- Implemented ImpactIndexSnapshot for persisting impact index data.
- Introduced SignalsScoringOptions for configurable scoring weights in reachability scoring.
- Added unit tests for ReachabilityScoringService and RuntimeFactsIngestionService.
- Created dotnet-filter.sh script to handle command-line arguments for dotnet.
- Established nuget-prime project for managing package downloads.

docs/implplan/SPRINT_513_provenance.md

@@ -7,8 +7,14 @@ Depends on: Sprint 100.A - Attestor, Sprint 110.A - AdvisoryAI, Sprint 120.A - A
 Summary: Ops & Offline focus on Provenance).
 Task ID | State | Task description | Owners (Source)
 --- | --- | --- | ---
-PROV-OBS-53-001 | TODO | Implement DSSE/SLSA `BuildDefinition` + `BuildMetadata` models with canonical JSON serializer, Merkle digest helpers, and deterministic hashing tests. Publish sample statements for orchestrator/job/export subjects. | Provenance Guild (src/Provenance/StellaOps.Provenance.Attestation)
-PROV-OBS-53-002 | TODO | Build signer abstraction (cosign/KMS/offline) with key rotation hooks, audit logging, and policy enforcement (required claims). Provide unit tests using fake signer + real cosign fixture. Dependencies: PROV-OBS-53-001. | Provenance Guild, Security Guild (src/Provenance/StellaOps.Provenance.Attestation)
+PROV-OBS-53-001 | DONE (2025-11-17) | Implement DSSE/SLSA `BuildDefinition` + `BuildMetadata` models with canonical JSON serializer, Merkle digest helpers, and deterministic hashing tests. Publish sample statements for orchestrator/job/export subjects. | Provenance Guild (src/Provenance/StellaOps.Provenance.Attestation)
+PROV-OBS-53-002 | DOING | Build signer abstraction (cosign/KMS/offline) with key rotation hooks, audit logging, and policy enforcement (required claims). Provide unit tests using fake signer + real cosign fixture. Dependencies: PROV-OBS-53-001. | Provenance Guild, Security Guild (src/Provenance/StellaOps.Provenance.Attestation)
 PROV-OBS-53-003 | TODO | Deliver `PromotionAttestationBuilder` that materialises the `stella.ops/promotion@v1` predicate (image digest, SBOM/VEX materials, promotion metadata, Rekor proof) and feeds canonicalised payload bytes to Signer via StellaOps.Cryptography. | Provenance Guild (src/Provenance/StellaOps.Provenance.Attestation)
 PROV-OBS-54-001 | TODO | Deliver verification library that validates DSSE signatures, Merkle roots, and timeline chain-of-custody, exposing reusable CLI/service APIs. Include negative-case fixtures and offline timestamp verification. Dependencies: PROV-OBS-53-002. | Provenance Guild, Evidence Locker Guild (src/Provenance/StellaOps.Provenance.Attestation)
 PROV-OBS-54-002 | TODO | Generate .NET global tool for local verification + embed command helpers for CLI `stella forensic verify`. Provide deterministic packaging and offline kit instructions. Dependencies: PROV-OBS-54-001. | Provenance Guild, DevEx/CLI Guild (src/Provenance/StellaOps.Provenance.Attestation)
+
+## Execution Log
+| Date (UTC) | Update | Owner |
+| --- | --- | --- |
+| 2025-11-17 | Started PROV-OBS-53-002: added cosign/kms/offline signer abstractions, rotating key provider, audit hooks, and unit tests; full test run pending. | Provenance |
+| 2025-11-17 | PROV-OBS-53-001 delivered: canonical BuildDefinition/BuildMetadata hashes, Merkle helpers, deterministic tests, and sample DSSE statements for orchestrator/job/export subjects. | Provenance |