GCR deployment testing in progress - content type issue still remaining.

Htmx.ApiDemo/HtmxResult.cs

@@ -0,0 +1,31 @@
+using Microsoft.AspNetCore.Http;
+
+namespace Htmx.ApiDemo;
+
+/// <summary>
+/// IResult implementation for rendering Htmx components as HTML or issuing redirects.
+/// Defined as user code (not source-generated) so that RequestDelegateGenerator can
+/// see it and emit NativeAOT-safe endpoint interceptors for lambdas returning this type.
+/// </summary>
+public readonly struct HtmxResult : IResult
+{
+    private readonly IHtmxComponent? _component;
+    private readonly string? _redirectUrl;
+
+    public HtmxResult(IHtmxComponent component) { _component = component; _redirectUrl = null; }
+    public HtmxResult(string redirectUrl)        { _component = null; _redirectUrl = redirectUrl; }
+
+    public Task ExecuteAsync(HttpContext context)
+    {
+        if (_redirectUrl is not null)
+        {
+            context.Response.Redirect(_redirectUrl);
+            return Task.CompletedTask;
+        }
+
+        context.Response.ContentType = "text/html; charset=utf-8";
+        var writerContext = new HtmxRenderContext(context.Response.BodyWriter);
+        _component!.Render(writerContext);
+        return Task.CompletedTask;
+    }
+}