consolidation of some of the modules, localization fixes, product advisories work, qa work

src/VexLens/StellaOps.VexLens/Normalization/CsafVexNormalizer.cs

@@ -430,6 +430,47 @@ public sealed class CsafVexNormalizer : IVexNormalizer
             }
         }
 
+        // Explicit unknown status
+        if (productStatus.TryGetProperty("known_unknown", out var knownUnknown) &&
+            knownUnknown.ValueKind == JsonValueKind.Array)
+        {
+            foreach (var productRef in knownUnknown.EnumerateArray())
+            {
+                var product = ResolveProduct(productRef, productTree);
+                if (product != null)
+                {
+                    statements.Add(CreateStatement(
+                        startIndex + localIndex++,
+                        vulnerabilityId,
+                        aliases,
+                        product,
+                        VexStatus.Unknown,
+                        null,
+                        vuln));
+                }
+            }
+        }
+
+        if (productStatus.TryGetProperty("unknown", out var unknown) &&
+            unknown.ValueKind == JsonValueKind.Array)
+        {
+            foreach (var productRef in unknown.EnumerateArray())
+            {
+                var product = ResolveProduct(productRef, productTree);
+                if (product != null)
+                {
+                    statements.Add(CreateStatement(
+                        startIndex + localIndex++,
+                        vulnerabilityId,
+                        aliases,
+                        product,
+                        VexStatus.Unknown,
+                        null,
+                        vuln));
+                }
+            }
+        }
+
         return statements;
     }