sprints work

src/Policy/__Libraries/StellaOps.Policy/Deltas/DeltaVerdict.cs

@@ -124,6 +124,9 @@ public enum DeltaGateLevel
 /// </summary>
 public sealed class DeltaVerdictBuilder
 {
+    private static readonly IVerdictIdGenerator DefaultIdGenerator = new VerdictIdGenerator();
+
+    private readonly IVerdictIdGenerator _idGenerator;
     private DeltaVerdictStatus _status = DeltaVerdictStatus.Pass;
     private DeltaGateLevel _gate = DeltaGateLevel.G1;
     private int _riskPoints;
@@ -133,6 +136,22 @@ public sealed class DeltaVerdictBuilder
     private readonly List<string> _recommendations = [];
     private string? _explanation;
 
+    /// <summary>
+    /// Creates a new <see cref="DeltaVerdictBuilder"/> with the default ID generator.
+    /// </summary>
+    public DeltaVerdictBuilder() : this(DefaultIdGenerator)
+    {
+    }
+
+    /// <summary>
+    /// Creates a new <see cref="DeltaVerdictBuilder"/> with a custom ID generator.
+    /// </summary>
+    /// <param name="idGenerator">Custom verdict ID generator for testing or specialized scenarios.</param>
+    public DeltaVerdictBuilder(IVerdictIdGenerator idGenerator)
+    {
+        _idGenerator = idGenerator ?? throw new ArgumentNullException(nameof(idGenerator));
+    }
+
     public DeltaVerdictBuilder WithStatus(DeltaVerdictStatus status)
     {
         _status = status;
@@ -206,17 +225,29 @@ public sealed class DeltaVerdictBuilder
             _status = DeltaVerdictStatus.PassWithExceptions;
         }
 
+        var blockingDrivers = _blockingDrivers.ToList();
+        var warningDrivers = _warningDrivers.ToList();
+        var appliedExceptions = _exceptions.ToList();
+
+        // Compute content-addressed VerdictId from inputs
+        var verdictId = _idGenerator.ComputeVerdictId(
+            deltaId,
+            blockingDrivers,
+            warningDrivers,
+            appliedExceptions,
+            _gate);
+
         return new DeltaVerdict
         {
-            VerdictId = $"dv:{Guid.NewGuid():N}",
+            VerdictId = verdictId,
             DeltaId = deltaId,
             EvaluatedAt = DateTimeOffset.UtcNow,
             Status = _status,
             RecommendedGate = _gate,
             RiskPoints = _riskPoints,
-            BlockingDrivers = _blockingDrivers.ToList(),
-            WarningDrivers = _warningDrivers.ToList(),
-            AppliedExceptions = _exceptions.ToList(),
+            BlockingDrivers = blockingDrivers,
+            WarningDrivers = warningDrivers,
+            AppliedExceptions = appliedExceptions,
             Explanation = _explanation ?? GenerateExplanation(),
             Recommendations = _recommendations.ToList()
         };