Restructure solution layout by module

src/Scanner/StellaOps.Scanner.WebService/Services/IPlatformEventPublisher.cs

@@ -0,0 +1,16 @@
+using System.Threading;
+using System.Threading.Tasks;
+using StellaOps.Scanner.WebService.Contracts;
+
+namespace StellaOps.Scanner.WebService.Services;
+
+/// <summary>
+/// Publishes orchestrator events to the internal bus consumed by downstream services.
+/// </summary>
+internal interface IPlatformEventPublisher
+{
+    /// <summary>
+    /// Publishes the supplied event envelope.
+    /// </summary>
+    Task PublishAsync(OrchestratorEvent @event, CancellationToken cancellationToken = default);
+}