Brings the dev template into parity with the env vars wiki for variables a
developer might toggle locally:
- PORT (in Environment & Security)
- PLUNK_FROM_ADDRESS (in Plunk API)
- New sections: Notifications (NTFY_URL), Attachments, User Management
(DISABLE_SIGNUPS, VERIFY_EMAIL_ON_SIGNUP), Phishing Detection
All additions are commented so default local behaviour is unchanged. Vars that
only make sense in the bundled Docker stack (SMTP relay ports, Minio internals,
NEXT_PUBLIC_*, NGINX_PORT) are intentionally omitted.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
