Add server configuration service and repo

API/Controllers/Config/V1/ConfigController.cs

@@ -1,13 +1,17 @@
 using Microsoft.AspNetCore.Mvc;
+using RecNet.Application.Services.Configuration;
 
 namespace API.Controllers.Config.V1;
 
 [Route("api/[controller]/v1")]
 [ApiController]
-public class ConfigController : ControllerBase
+public class ConfigController(IConfigService configService) : ControllerBase
 {
-    // TODO: Resolve from Database
     [HttpGet("motd")]
-    public ActionResult<string> GetMotd()
-        => Ok("Hello World!");
+    public async Task<ActionResult<string>> GetMotd(CancellationToken ct = default)
+    {
+        var motd = await configService.GetAsync("Config:MOTD", "Ten Whole Years!", ct);
+        
+        return Ok(motd);
+    }
 }