feat: add security sink detection patterns for JavaScript/TypeScript

- Introduced `sink-detect.js` with various security sink detection patterns categorized by type (e.g., command injection, SQL injection, file operations).
- Implemented functions to build a lookup map for fast sink detection and to match sink calls against known patterns.
- Added `package-lock.json` for dependency management.

src/Concelier/__Libraries/StellaOps.Concelier.Merge/Comparers/VersionComparisonResult.cs

@@ -1,10 +1,37 @@
 namespace StellaOps.Concelier.Merge.Comparers;
 
 using System.Collections.Immutable;
+using StellaOps.VersionComparison;
 
 /// <summary>
 /// Result of a version comparison with explainability proof lines.
 /// </summary>
+/// <param name="Comparison">Negative if left &lt; right, zero if equal, positive if left &gt; right.</param>
+/// <param name="ProofLines">Human-readable explanation of comparison steps.</param>
+/// <param name="Comparator">The comparator type used.</param>
 public sealed record VersionComparisonResult(
     int Comparison,
-    ImmutableArray<string> ProofLines);
+    ImmutableArray<string> ProofLines,
+    ComparatorType Comparator)
+{
+    /// <summary>
+    /// True if the left version is less than the right version.
+    /// </summary>
+    public bool IsLessThan => Comparison < 0;
+
+    /// <summary>
+    /// True if the left version equals the right version.
+    /// </summary>
+    public bool IsEqual => Comparison == 0;
+
+    /// <summary>
+    /// True if the left version is greater than the right version.
+    /// </summary>
+    public bool IsGreaterThan => Comparison > 0;
+
+    /// <summary>
+    /// True if the left version is greater than or equal to the right version.
+    /// Useful for checking if installed >= fixed.
+    /// </summary>
+    public bool IsGreaterThanOrEqual => Comparison >= 0;
+}