audit work, fixed StellaOps.sln warnings/errors, fixed tests, sprints work, new advisories

src/Policy/__Libraries/StellaOps.Policy.Determinization/Evidence/ReachabilityEvidence.cs

@@ -42,6 +42,18 @@ public sealed record ReachabilityEvidence
     /// </summary>
     [JsonPropertyName("witness_digest")]
     public string? WitnessDigest { get; init; }
+
+    /// <summary>
+    /// Analysis confidence [0.0, 1.0].
+    /// </summary>
+    [JsonPropertyName("confidence")]
+    public double Confidence { get; init; } = 1.0;
+
+    /// <summary>
+    /// Convenience property indicating if code is reachable.
+    /// </summary>
+    [JsonIgnore]
+    public bool IsReachable => Status == ReachabilityStatus.Reachable;
 }
 
 /// <summary>