Add remaining project files

Controllers/ChatController.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace DeluxeBackend.Controllers
+{
+    [Route("Chat")]
+    [ApiController]
+    public class ChatController : ControllerBase
+    {
+        [HttpGet("thread")]
+        [Authorize]
+        public async Task<IActionResult> Thread()
+        {
+            return Ok(new List<object>());
+        }
+    }
+}