feat: Implement BerkeleyDB reader for RPM databases

- Added BerkeleyDbReader class to read and extract RPM header blobs from BerkeleyDB hash databases.
- Implemented methods to detect BerkeleyDB format and extract values, including handling of page sizes and magic numbers.
- Added tests for BerkeleyDbReader to ensure correct functionality and header extraction.

feat: Add Yarn PnP data tests

- Created YarnPnpDataTests to validate package resolution and data loading from Yarn PnP cache.
- Implemented tests for resolved keys, package presence, and loading from cache structure.

test: Add egg-info package fixtures for Python tests

- Created egg-info package fixtures for testing Python analyzers.
- Included PKG-INFO, entry_points.txt, and installed-files.txt for comprehensive coverage.

test: Enhance RPM database reader tests

- Added tests for RpmDatabaseReader to validate fallback to legacy packages when SQLite is missing.
- Implemented helper methods to create legacy package files and RPM headers for testing.

test: Implement dual signing tests

- Added DualSignTests to validate secondary signature addition when configured.
- Created stub implementations for crypto providers and key resolvers to facilitate testing.

chore: Update CI script for Playwright Chromium installation

- Modified ci-console-exports.sh to ensure deterministic Chromium binary installation for console exports tests.
- Added checks for Windows compatibility and environment variable setups for Playwright browsers.

src/Concelier/__Libraries/StellaOps.Concelier.Connector.Common/Fetch/RawDocumentStorage.cs

@@ -1,5 +1,6 @@
 using System.Collections.Concurrent;
 using System.IO;
+using StellaOps.Concelier.Storage.Mongo;
 
 namespace StellaOps.Concelier.Connector.Common.Fetch;
 
@@ -9,6 +10,12 @@ namespace StellaOps.Concelier.Connector.Common.Fetch;
 public sealed class RawDocumentStorage
 {
     private readonly ConcurrentDictionary<Guid, byte[]> _blobs = new();
+    private readonly IDocumentStore? _documentStore;
+
+    public RawDocumentStorage(IDocumentStore? documentStore = null)
+    {
+        _documentStore = documentStore;
+    }
 
     public Task<Guid> UploadAsync(
         string sourceName,
@@ -16,7 +23,7 @@ public sealed class RawDocumentStorage
         byte[] content,
         string? contentType,
         CancellationToken cancellationToken)
-        => UploadAsync(sourceName, uri, content, contentType, expiresAt: null, cancellationToken);
+        => UploadAsync(sourceName, uri, content, contentType, ExpiresAt: null, cancellationToken);
 
     public async Task<Guid> UploadAsync(
         string sourceName,
@@ -39,11 +46,21 @@ public sealed class RawDocumentStorage
         return id;
     }
 
-    public Task<byte[]> DownloadAsync(Guid id, CancellationToken cancellationToken)
+    public async Task<byte[]> DownloadAsync(Guid id, CancellationToken cancellationToken)
     {
         if (_blobs.TryGetValue(id, out var bytes))
         {
-            return Task.FromResult(bytes);
+            return bytes;
+        }
+
+        if (_documentStore is not null)
+        {
+            var record = await _documentStore.FindAsync(id, cancellationToken).ConfigureAwait(false);
+            if (record?.Payload is { Length: > 0 })
+            {
+                _blobs[id] = record.Payload;
+                return record.Payload;
+            }
         }
 
         throw new FileNotFoundException($"Blob {id} not found.");