feat: add Twilio sandbox webhook + AI response on HF Space

fix: use absolute path for Next.js binary in supervisord

feat: sync latest code - dashboard API, web form, libpq-dev fix

Switch WhatsApp proxy from Cloudflare Worker to Google Apps Script

Fix: add Gmail OAuth env vars to start.sh defaults

Switch from SMTP to Gmail API (HTTP) for email - SMTP blocked on HuggingFace

Fix: use npx for next start command

Deploy CRM Digital FTE Factory