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/StellaOps.Concelier.WebService/Extensions/JobRegistrationExtensions.cs

@@ -111,14 +111,17 @@ internal static class JobRegistrationExtensions
 
     private static void ConfigureMergeJob(JobSchedulerOptions options, IConfiguration 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)
         {
             options.Definitions.Remove(MergeReconcileBuiltInJob.Kind);
             return;
         }
 
-        var allowlist = configuration.GetSection("concelier:jobs:merge:allowlist").Get<string[]>();
+        var allowlist = configuration.GetSection("concelier:jobs:merge:allowlist").Get<string[]>()
+            ?? configuration.GetSection("jobs:merge:allowlist").Get<string[]>();
         if (allowlist is { Length: > 0 })
         {
             var allowlistSet = new HashSet<string>(allowlist, StringComparer.OrdinalIgnoreCase);