feat: move UserDTO logic into single file

internal/auth/routes.go

@@ -162,17 +162,7 @@ func (h *AuthHandler) getProfile(w http.ResponseWriter, r *http.Request) {
 
 	w.Header().Set("Content-Type", "application/json")
 
-	if err := json.NewEncoder(w).Encode(types.UserDTO{
-		ID:             user.ID,
-		FullName:       user.FullName,
-		Email:          user.Email,
-		PhoneNumber:    user.PhoneNumber,
-		IsAdmin:        user.IsAdmin,
-		LastLogin:      user.LastLogin,
-		ProfilePicture: user.ProfilePicture,
-		UpdatedAt:      user.UpdatedAt,
-		CreatedAt:      user.CreatedAt,
-	}); err != nil {
+	if err := json.NewEncoder(w).Encode(types.NewUserDTO(&user)); err != nil {
 		web.Error(w, "failed to encode user profile", http.StatusInternalServerError)
 	}
 }