Installers before 4.5.1 and manual edits could leave ROOT_USERNAME (or the
root email or password) with spaces and no quotes. The running container
ignores .env because its config is cached, so the next upgrade recreated it
and phpdotenv failed, which made every page return HTTP 500. The upgrade now
quotes these values before it restarts Coolify.
Closes#12375
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
