Implement MongoDB-based storage for Pack Run approval, artifact, log, and state management

- Added MongoPackRunApprovalStore for managing approval states with MongoDB.
- Introduced MongoPackRunArtifactUploader for uploading and storing artifacts.
- Created MongoPackRunLogStore to handle logging of pack run events.
- Developed MongoPackRunStateStore for persisting and retrieving pack run states.
- Implemented unit tests for MongoDB stores to ensure correct functionality.
- Added MongoTaskRunnerTestContext for setting up MongoDB test environment.
- Enhanced PackRunStateFactory to correctly initialize state with gate reasons.

src/Concelier/__Libraries/StellaOps.Concelier.Merge/MergeServiceCollectionExtensions.cs

@@ -18,7 +18,9 @@ public static class MergeServiceCollectionExtensions
         ArgumentNullException.ThrowIfNull(services);
         ArgumentNullException.ThrowIfNull(configuration);
 
-        var noMergeEnabled = configuration.GetValue<bool?>("concelier:features:noMergeEnabled") ?? true;
+        var noMergeEnabled = configuration.GetValue<bool?>("concelier:features:noMergeEnabled")
+            ?? configuration.GetValue<bool?>("features:noMergeEnabled")
+            ?? true;
         if (noMergeEnabled)
         {
             return services;

src/Concelier/__Libraries/StellaOps.Concelier.Merge/TASKS.md

@@ -10,6 +10,6 @@
 | Task | Owner(s) | Depends on | Notes |
 |---|---|---|---|
 |MERGE-LNM-21-001 Migration plan authoring|BE-Merge, Architecture Guild|CONCELIER-LNM-21-101|**DONE (2025-11-03)** – Authored `docs/migration/no-merge.md` with rollout phases, backfill/validation checklists, rollback guidance, and ownership matrix for the Link-Not-Merge cutover.|
-|MERGE-LNM-21-002 Merge service deprecation|BE-Merge|MERGE-LNM-21-001|**DOING (2025-11-06)** – Defaulted `concelier:features:noMergeEnabled` to `true`, added merge job allowlist gate, and began rewiring guard/tier tests; follow-up work required to restore Concelier WebService test suite before declaring completion.<br>2025-11-05 14:42Z: Implemented `concelier:features:noMergeEnabled` gate, merge job allowlist checks, `[Obsolete]` markings, and analyzer scaffolding to steer consumers toward linkset APIs.<br>2025-11-06 16:10Z: Introduced Roslyn analyzer (`CONCELIER0002`) referenced by Concelier WebService + tests, documented suppression guidance, and updated migration playbook.<br>2025-11-07 03:25Z: Default-on toggle + job gating break existing Concelier WebService tests; guard + seed fixes pending to unblock ingest/mirror suites.| 
+|MERGE-LNM-21-002 Merge service deprecation|BE-Merge|MERGE-LNM-21-001|**DOING (2025-11-07)** – Defaulted `concelier:features:noMergeEnabled` to `true`, added merge job allowlist gate, and began rewiring guard/tier tests; follow-up work required to restore Concelier WebService test suite before declaring completion.<br>2025-11-05 14:42Z: Implemented `concelier:features:noMergeEnabled` gate, merge job allowlist checks, `[Obsolete]` markings, and analyzer scaffolding to steer consumers toward linkset APIs.<br>2025-11-06 16:10Z: Introduced Roslyn analyzer (`CONCELIER0002`) referenced by Concelier WebService + tests, documented suppression guidance, and updated migration playbook.<br>2025-11-07 03:25Z: Default-on toggle + job gating break existing Concelier WebService tests; guard + seed fixes pending to unblock ingest/mirror suites.<br>2025-11-07 07:05Z: Added ingest logging + test log dumps to trace upstream hash loss; still chasing why Minimal API binding strips `upstream.contentHash` before the guard runs.| 
 > 2025-11-03: Catalogued call sites (WebService Program `AddMergeModule`, built-in job registration `merge:reconcile`, `MergeReconcileJob`) and confirmed unit tests are the only direct `MergeAsync` callers; next step is to define analyzer + replacement observability coverage.
 |MERGE-LNM-21-003 Determinism/test updates|QA Guild, BE-Merge|MERGE-LNM-21-002|Replace merge determinism suites with observation/linkset regression tests verifying no data mutation and conflicts remain visible.|