HALOZER WhatsApp Web Service v35

This version keeps the existing .wwebjs_auth session and simplifies Chromium launch flags for cPanel/shared hosting.

IMPORTANT:
- Do NOT delete .wwebjs_auth if WhatsApp has already been authenticated.
- Replace server.js and package.json in /home/aanzkxcq/wa.manage.halozer.in/
- Run NPM Install if cPanel asks, then Restart the Node.js app.
- Open https://wa.manage.halozer.in/health
- QR page: https://wa.manage.halozer.in/qr

New diagnostics:
- loading percentage/message
- last_event
- authenticated/ready/disconnected events
- Chrome dumpio remains enabled for stderr diagnostics
