designtopack/public/site/templates/project.json.php

<?php
$project = [
  'title' => $page->title()->value(),
  'url' => $page->url(),
  'modified' => $page->modified('Y-MM-d'),
  'status' => $page->status(),
  'logo' => $page->client()->isNotEmpty() && $page->client()->toPage() ? $page->client()->toPage()->logo()->toFile()->url() : null,
  'steps' => $page->getSteps(),
];

$pageData = array_merge($genericData, $project);

echo json_encode([
  "page" => $pageData,
  "user" => $userData
]);