Add comprehensive tests for Go and Python version conflict detection and licensing normalization

- Implemented GoVersionConflictDetectorTests to validate pseudo-version detection, conflict analysis, and conflict retrieval for Go modules.
- Created VersionConflictDetectorTests for Python to assess conflict detection across various version scenarios, including major, minor, and patch differences.
- Added SpdxLicenseNormalizerTests to ensure accurate normalization of SPDX license strings and classifiers.
- Developed VendoredPackageDetectorTests to identify vendored packages and extract embedded packages from Python packages, including handling of vendor directories and known vendored packages.

src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.Lang.Bun/Internal/BunConfigHelper.cs

@@ -134,7 +134,7 @@ internal static partial class BunConfigHelper
             scopeRegistries.ToImmutableDictionary(StringComparer.Ordinal));
     }
 
-    private static string StripQuotes(string value)
+    internal static string StripQuotes(string value)
     {
         if (value.Length >= 2)
         {
@@ -148,7 +148,7 @@ internal static partial class BunConfigHelper
         return value;
     }
 
-    private static string? ExtractRegistryUrl(string value)
+    internal static string? ExtractRegistryUrl(string value)
     {
         // Simple case: just a URL string
         if (value.StartsWith("http", StringComparison.OrdinalIgnoreCase))

src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.Lang.Bun/Internal/BunLockParser.cs

@@ -104,7 +104,7 @@ internal static class BunLockParser
         }
     }
 
-    private static (string Name, string Version) ParsePackageKey(string key)
+    internal static (string Name, string Version) ParsePackageKey(string key)
     {
         // Format: name@version or @scope/name@version
         // Need to find the last @ that is not at position 0 (for scoped packages)
@@ -219,7 +219,7 @@ internal static class BunLockParser
     /// <summary>
     /// Classifies the resolved URL to detect git, tarball, file, or npm sources.
     /// </summary>
-    private static (string SourceType, string? GitCommit, string? Specifier) ClassifyResolvedUrl(string? resolved)
+    internal static (string SourceType, string? GitCommit, string? Specifier) ClassifyResolvedUrl(string? resolved)
     {
         if (string.IsNullOrEmpty(resolved))
         {
@@ -277,7 +277,7 @@ internal static class BunLockParser
     /// <summary>
     /// Extracts git commit hash from a git URL (after # or @).
     /// </summary>
-    private static string? ExtractGitCommit(string url)
+    internal static string? ExtractGitCommit(string url)
     {
         // Format: git+https://github.com/user/repo#commit
         // or: github:user/repo#tag

src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.Lang.Bun/StellaOps.Scanner.Analyzers.Lang.Bun.csproj

@@ -8,6 +8,10 @@
     <EnableDefaultItems>false</EnableDefaultItems>
   </PropertyGroup>
 
+  <ItemGroup>
+    <InternalsVisibleTo Include="StellaOps.Scanner.Analyzers.Lang.Bun.Tests" />
+  </ItemGroup>
+
   <ItemGroup>
     <Compile Include="**\*.cs" Exclude="obj\**;bin\**" />
     <EmbeddedResource Include="**\*.json" Exclude="obj\**;bin\**" />