feat: Add CVSS receipt management endpoints and related functionality

- Introduced new API endpoints for creating, retrieving, amending, and listing CVSS receipts.
- Updated IPolicyEngineClient interface to include methods for CVSS receipt operations.
- Implemented PolicyEngineClient to handle CVSS receipt requests.
- Enhanced Program.cs to map new CVSS receipt routes with appropriate authorization.
- Added necessary models and contracts for CVSS receipt requests and responses.
- Integrated Postgres document store for managing CVSS receipts and related data.
- Updated database schema with new migrations for source documents and payload storage.
- Refactored existing components to support new CVSS functionality.

src/Concelier/__Tests/StellaOps.Concelier.Connector.Common.Tests/Common/SourceStateSeedProcessorTests.cs

@@ -93,7 +93,7 @@ public sealed class SourceStateSeedProcessorTests : IAsyncLifetime
         Assert.Equal(documentId, storedDocument!.Id);
         Assert.Equal("application/json", storedDocument.ContentType);
         Assert.Equal(DocumentStatuses.PendingParse, storedDocument.Status);
-        Assert.NotNull(storedDocument.GridFsId);
+        Assert.NotNull(storedDocument.PayloadId);
         Assert.NotNull(storedDocument.Headers);
         Assert.Equal("true", storedDocument.Headers!["X-Test"]);
         Assert.NotNull(storedDocument.Metadata);
@@ -153,7 +153,7 @@ public sealed class SourceStateSeedProcessorTests : IAsyncLifetime
             CancellationToken.None);
 
         Assert.NotNull(existingRecord);
-        var previousGridId = existingRecord!.GridFsId;
+        var previousGridId = existingRecord!.PayloadId;
         Assert.NotNull(previousGridId);
 
         var filesCollection = _database.GetCollection<BsonDocument>("documents.files");
@@ -189,8 +189,8 @@ public sealed class SourceStateSeedProcessorTests : IAsyncLifetime
 
         Assert.NotNull(refreshedRecord);
         Assert.Equal(documentId, refreshedRecord!.Id);
-        Assert.NotNull(refreshedRecord.GridFsId);
-        Assert.NotEqual(previousGridId, refreshedRecord.GridFsId);
+        Assert.NotNull(refreshedRecord.PayloadId);
+        Assert.NotEqual(previousGridId, refreshedRecord.PayloadId);
 
         var files = await filesCollection.Find(FilterDefinition<BsonDocument>.Empty).ToListAsync();
         Assert.Single(files);