Restore vendor connector internals and configure offline packages

src/StellaOps.Concelier.Connector.CertBund/Internal/CertBundDocumentMetadata.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+
+namespace StellaOps.Concelier.Connector.CertBund.Internal;
+
+internal static class CertBundDocumentMetadata
+{
+    public static Dictionary<string, string> CreateMetadata(CertBundFeedItem item)
+    {
+        var metadata = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            ["certbund.advisoryId"] = item.AdvisoryId,
+            ["certbund.portalUri"] = item.PortalUri.ToString(),
+            ["certbund.published"] = item.Published.ToString("O"),
+        };
+
+        if (!string.IsNullOrWhiteSpace(item.Category))
+        {
+            metadata["certbund.category"] = item.Category!;
+        }
+
+        if (!string.IsNullOrWhiteSpace(item.Title))
+        {
+            metadata["certbund.title"] = item.Title!;
+        }
+
+        return metadata;
+    }
+}