more audit work

src/SbomService/__Libraries/StellaOps.SbomService.Lineage/AGENTS.md

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+# SbomService Lineage Library Charter
+
+## Mission
+Provide lineage utilities for SBOM service workflows.
+
+## Responsibilities
+- Maintain `StellaOps.SbomService.Lineage`.
+- Keep outputs deterministic and offline-friendly.
+- Surface open work on `TASKS.md`; update statuses (TODO/DOING/DONE/BLOCKED/REVIEW).
+
+## Key Paths
+- `StellaOps.SbomService.Lineage.csproj`
+
+## Coordination
+- SBOM service owners.
+
+## Required Reading
+- `docs/modules/sbom-service/architecture.md`
+- `docs/modules/platform/architecture-overview.md`
+- `docs/implplan/permament/SPRINT_20251229_049_BE_csproj_audit_maint_tests.md`
+
+## Working Agreement
+- 1. Update task status to `DOING`/`DONE` in both corresponding sprint file and local `TASKS.md`.
+- 2. Keep outputs deterministic (ordering, timestamps, IDs).
+- 3. Avoid cross-module edits without sprint notes.

src/SbomService/__Libraries/StellaOps.SbomService.Lineage/TASKS.md

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+# SbomService Lineage Task Board
+
+This board mirrors active sprint tasks for this module.
+Source of truth: `docs/implplan/permament/SPRINT_20251229_049_BE_csproj_audit_maint_tests.md`.
+
+| Task ID | Status | Notes |
+| --- | --- | --- |
+| AUDIT-0764-M | DONE | Revalidated 2026-01-07. |
+| AUDIT-0764-T | DONE | Revalidated 2026-01-07. |
+| AUDIT-0764-A | DONE | Already compliant (TreatWarningsAsErrors). |