add: hci

Program.cs

@@ -2,6 +2,7 @@ using Alchegos.HCI.Components;
 using Alchegos.HCI.Filters;
 using Alchegos.HCI.Models;
 using Alchegos.HCI.Services;
+using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Mvc;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -11,7 +12,14 @@ builder.Services.AddRazorComponents()
     .AddInteractiveServerComponents();
 builder.Services.AddHttpClient();
 builder.Services.AddSingleton<IChatSessionService, InMemoryChatSessionService>();
-
+builder.Services.AddSingleton<IAuthenticationService, AuthenticationService>();
+builder.Services.AddCors(options =>
+{
+    options.AddPolicy(name: "n8n", policy =>
+    {
+        policy.WithOrigins("http://n8n:5678");
+    });
+});
 var app = builder.Build();
 
 // Configure the HTTP request pipeline.
@@ -37,25 +45,33 @@ app.MapPost("/api/chatwebhook", async (
     if (string.IsNullOrEmpty(payload.SessionId))
     {
         logger.LogWarning("Received webhook payload without sessionId.");
-        return Results.BadRequest("sessionId is required.");
+        var errors = new Dictionary<string, string[]> {
+            { nameof(payload.SessionId), ["sessionId is required."] }
+        };
+        return Results.ValidationProblem(errors,
+            title: "One or more validation errors occurred.",
+            statusCode: StatusCodes.Status400BadRequest);
     }
 
     if (payload.Action == "close_session")
     {
         logger.LogInformation("Webhook request received to close session: {SessionId}", payload.SessionId);
         await chatSessionService.TriggerSessionClosed(payload.SessionId);
-        return Results.Ok($"Session close requested for {payload.SessionId}");
+        return Results.Ok(new { message = $"Session close requested for {payload.SessionId}" });
     }
     else if (!string.IsNullOrEmpty(payload.Output))
     {
         logger.LogInformation("Webhook request received with output for session: {SessionId}", payload.SessionId);
         await chatSessionService.TriggerMessageReceived(payload.SessionId, payload.Output);
-        return Results.Ok($"Output received for {payload.SessionId}");
+        return Results.Ok(new { message = $"Output received for {payload.SessionId}" });
     }
     else
     {
         logger.LogWarning("Received webhook payload for session {SessionId} with neither 'output' nor 'action':'close_session'.", payload.SessionId);
-        return Results.BadRequest("Payload must contain either 'output' or 'action':'close_session'.");
+        return Results.Problem(
+            title: "Invalid payload content.",
+            detail: "Payload must contain either a non-empty 'output' field or an 'action' field set to 'close_session'.",
+            statusCode: StatusCodes.Status400BadRequest);
     }
 })
     .WithTags("Chat Webhook")