Disable phone-home to api.qloapps.com

Add _QLO_DISABLE_PHONE_HOME_ (default true) and honour it in
Tools::addonsRequest(), Tools::refresh(), the installer notification and
the theme catalog fetch. This stops sending admin name/email, shop domain
and country on install, the daily upgrade check, the admin
"recommendation" HTML and module/theme catalog requests.
Language and localization pack downloads stay available.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

install-dev/models/install.php

@@ -634,6 +634,11 @@ class InstallModelInstall extends InstallAbstractModel
      */
     public function setNotification($installData)
     {
+        // Do not send admin name, email, domain and country to api.qloapps.com
+        if (defined('_QLO_DISABLE_PHONE_HOME_') && _QLO_DISABLE_PHONE_HOME_) {
+            return true;
+        }
+
         Tools::addonsRequest('installation', array(
             'install_data' => $installData,
             'version' => _QLO_INSTALL_VERSION_,