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/Scanner/__Tests/StellaOps.Scanner.Analyzers.Lang.Python.Tests/Python/PythonLanguageAnalyzerTests.cs

@@ -341,6 +341,32 @@ public sealed class PythonLanguageAnalyzerTests
         }
     }
 
+    [Fact]
+    public async Task EggInfoPackagesAreDetectedAsync()
+    {
+        var cancellationToken = TestContext.Current.CancellationToken;
+        var fixturePath = TestPaths.ResolveFixture("lang", "python", "egg-info");
+
+        var analyzers = new ILanguageAnalyzer[]
+        {
+            new PythonLanguageAnalyzer()
+        };
+
+        var json = await LanguageAnalyzerTestHarness.RunToJsonAsync(
+            fixturePath,
+            analyzers,
+            cancellationToken);
+
+        using var document = JsonDocument.Parse(json);
+        var root = document.RootElement;
+
+        var expectedPath = Path.Combine("lib", "python3.11", "site-packages", "egg_info_pkg-1.2.3.egg-info");
+
+        Assert.True(ComponentHasMetadata(root, "egg-info-pkg", "provenance", "egg-info"));
+        Assert.True(ComponentHasMetadata(root, "egg-info-pkg", "record.totalEntries", "4"));
+        Assert.True(ComponentHasMetadata(root, "egg-info-pkg", "distInfoPath", expectedPath));
+    }
+
     [Fact]
     public async Task DetectsPythonEnvironmentVariablesAsync()
     {