more features checks. setup improvements

docs/features/checked/concelier/backport-aware-advisory-deduplication-with-provenance-scope.md

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+# Backport-Aware Advisory Deduplication with Provenance Scope
+
+## Module
+Concelier
+
+## Status
+VERIFIED
+
+## Description
+Enhances canonical advisory deduplication to be backport-aware. Same CVE with different backport status produces correctly differentiated canonicals. Includes provenance_scope tracking, configurable vendor vs. distro precedence lattice, and patch lineage normalization for merge_hash computation.
+
+## Implementation Details
+- **Modules**: `src/Concelier/__Libraries/StellaOps.Concelier.Merge/`, `src/Concelier/__Libraries/StellaOps.Concelier.Persistence/`
+- **Key Classes**:
+  - `MergeHashCalculator` (`src/Concelier/__Libraries/StellaOps.Concelier.Merge/Identity/MergeHashCalculator.cs`) - merge hash computation with backport-aware normalization
+  - `MergeHashBackfillService` (`src/Concelier/__Libraries/StellaOps.Concelier.Merge/Services/MergeHashBackfillService.cs`) - backfills merge hashes for existing advisories
+  - `MergeHashBackfillJob` (`src/Concelier/__Libraries/StellaOps.Concelier.Merge/Jobs/MergeHashBackfillJob.cs`) - scheduled job for merge hash backfill
+  - `MergeHashShadowWriteService` (`src/Concelier/__Libraries/StellaOps.Concelier.Merge/Identity/MergeHashShadowWriteService.cs`) - shadow writes for merge hash validation
+  - `ProvenanceScopeService` (`src/Concelier/__Libraries/StellaOps.Concelier.Merge/Backport/ProvenanceScopeService.cs`) - provenance scope tracking and management
+  - `ProvenanceScopeRepository` (`src/Concelier/__Libraries/StellaOps.Concelier.Persistence/Postgres/Repositories/ProvenanceScopeRepository.cs`) - PostgreSQL persistence for provenance scopes
+  - `ProvenanceScopeEntity` (`src/Concelier/__Libraries/StellaOps.Concelier.Persistence/Postgres/Models/ProvenanceScopeEntity.cs`) - database entity for provenance scope
+  - `PostgresProvenanceScopeStore` (`src/Concelier/__Libraries/StellaOps.Concelier.Persistence/Postgres/Repositories/PostgresProvenanceScopeStore.cs`) - store implementation
+- **Interfaces**: `IMergeHashCalculator`, `IProvenanceScopeService`, `IProvenanceScopeRepository`
+- **Source**: SPRINT_8200_0015_0001_CONCEL_backport_integration.md
+
+## E2E Test Plan
+- [ ] Ingest same CVE with different backport status (patched vs unpatched) from two distros and verify they produce distinct canonical advisories
+- [ ] Verify `MergeHashCalculator` differentiates merge hashes when backport status differs for the same CVE
+- [ ] Verify `ProvenanceScopeService` correctly tracks which provenance scope each canonical belongs to
+- [ ] Verify vendor vs. distro precedence: when vendor says "not affected" but distro says "patched", verify the precedence lattice resolves correctly
+- [ ] Verify `MergeHashBackfillService` can retroactively update merge hashes for pre-existing advisories