Add remaining project files

Controllers/Api/GameConfigsController.cs

@@ -0,0 +1,36 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using static DeluxeBackend.Enums;
+using System.Text.Json;
+
+namespace DeluxeBackend.Controllers.Api
+{
+    [Route("api/gameconfigs")]
+    [ApiController]
+    public class GameConfigsController : ControllerBase
+    {
+        private readonly List<GameConfigDto> gameConfigDtos = [];
+
+        public GameConfigsController()
+        {
+            if (gameConfigDtos.Count == 0)
+            {
+                var json = System.IO.File.ReadAllText(Path.Combine("data", "GameConfigs.json"));
+                var gameConfigs = JsonSerializer.Deserialize<List<GameConfigDto>>(json);
+                gameConfigDtos.AddRange(gameConfigs);
+            }
+        }
+        public class GameConfigDto
+        {
+            public required string Key { get; set; }
+            public required string Value { get; set; }
+            public string? ActiveExperiments { get; set; } = null;
+        }
+
+        [HttpGet("v1/all")]
+        public async Task<IActionResult> List()
+        {
+            return Ok(gameConfigDtos);
+        }
+    }
+}