feat: add AuthResponseDTO for login and refresh token responses

internal/dto/auth_response.go

@@ -0,0 +1,23 @@
+package dto
+
+import (
+	"goyco/internal/services"
+)
+
+type AuthResponseDTO struct {
+	AccessToken  string  `json:"access_token"`
+	RefreshToken string  `json:"refresh_token"`
+	User         UserDTO `json:"user"`
+}
+
+func ToAuthResponseDTO(result *services.AuthResult) AuthResponseDTO {
+	if result == nil {
+		return AuthResponseDTO{}
+	}
+
+	return AuthResponseDTO{
+		AccessToken:  result.AccessToken,
+		RefreshToken: result.RefreshToken,
+		User:         ToUserDTO(result.User),
+	}
+}