- Catch exceptions and log them with stack trace instead of returning them to the user.
- Return generic "Internal Server Error" to prevent information leakage.
- Add regression test `scripts/test_web_dashboard_security.py`.
- Update Sentinel journal.
- Added daisy.ns.cloudflare.com and rocco.ns.cloudflare.com to Cloudflare guide.
- Unified domain name to lengkundee01.org in CNAME and PWA guide.
- Verified active domain using dig.
- Updated sentinel journal with documentation learnings.
- Changed `check_authorized` in `scripts/telegram_deploy_bot.py` to fail closed (deny all) if `TELEGRAM_ALLOWED_USER_IDS` is unset or empty.
- Updated `scripts/TELEGRAM_BOT_SETUP.md` and `QUICK_DEPLOY.md` to document that `TELEGRAM_ALLOWED_USER_IDS` is now mandatory for bot access.
- Added Sentinel Journal entry in `.jules/sentinel.md` documenting the vulnerability and learning.
- Verified fix with reproduction script.
