Add JWT authentication and authorization infrastructure

Distribution/Features/Auth/AuthController.cs

@@ -0,0 +1,15 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace Distribution.Features.Auth;
+
+[ApiController]
+[Route("api/auth")]
+public class AuthController(AuthService service) : ControllerBase
+{
+    [HttpPost("login")]
+    public async Task<IActionResult> Login(LoginRequest request)
+    {
+        var result = await service.LoginAsync(request);
+        return result is null ? Unauthorized() : Ok(result);
+    }
+}