- Implement `SbomIngestServiceCollectionExtensionsTests` to verify the SBOM ingestion pipeline exports snapshots correctly.
- Create `SbomIngestTransformerTests` to ensure the transformation produces expected nodes and edges, including deduplication of license nodes and normalization of timestamps.
- Add `SbomSnapshotExporterTests` to test the export functionality for manifest, adjacency, nodes, and edges.
- Introduce `VexOverlayTransformerTests` to validate the transformation of VEX nodes and edges.
- Set up project file for the test project with necessary dependencies and configurations.
- Include JSON fixture files for testing purposes.
- Added new policy scopes: `policy:publish` and `policy:promote` with interactive-only enforcement.
- Introduced metadata parameters for policy actions: `policy_reason`, `policy_ticket`, and `policy_digest`.
- Enhanced token validation to require fresh authentication for policy attestation tokens.
- Updated grant handlers to enforce policy scope checks and log audit information.
- Implemented service account delegation configuration, including quotas and validation.
- Seeded service accounts during application initialization based on configuration.
- Updated documentation and tasks to reflect new features and changes.
