feat(artifacts): additive Secrets list + SecretsApplied on the artifact deploy contract (proto field 9)

tests/ZB.MOM.WW.ScadaBridge.Communication.Tests/SiteCommandSamples.cs

@@ -90,6 +90,8 @@ internal static class SiteCommandSamples
         Add(new NotificationListArtifact("ops", ["a@x.com"]), new NotificationListArtifact("empty", []));
         Add(DataConnection(), new DataConnectionArtifact("bare", "OpcUa", null, null, 0));
         Add(Smtp(), new SmtpConfigurationArtifact("bare", "smtp", 25, "None", "f@x.com", null, null, null));
+        Add(Secret(), new SecretArtifact(
+            "bare", "text/plain", [], [], [], [], [], [], "kek-bare", 0, T2, T2));
 
         // ── Lifecycle replies ──
         Add(new DeploymentStatusResponse("dep-1", "Site1.Pump1", DeploymentStatus.Success, null, T1),
@@ -233,6 +235,11 @@ internal static class SiteCommandSamples
     private static SmtpConfigurationArtifact Smtp() =>
         new("Default", "smtp.host", 587, "Basic", "from@x.com", "user", "secret", "{\"tenant\":\"t\"}");
 
+    private static SecretArtifact Secret() =>
+        new("EsgApiKey", "application/octet-stream",
+            [1, 2, 3, 4], [5, 6], [7, 8, 9], [10, 11], [12], [13, 14, 15],
+            "kek-2026-09", 4, T1, T2, "MES API key");
+
     private static BrowseNode Node() => new("ns=2;s=Pump1.Speed", "Speed", BrowseNodeClass.Variable, false, "Double", -1, true);
 
     private static BrowseNode NodeBare() => new("ns=2;s=Root", "Root", BrowseNodeClass.Object, true);