[1.9.3] - 2025-05-16

✨ Changed

🔧 System Improvements

• 🕒 feat: Replace unreliable cron jobs with a systemd-based HysteriaScheduler service
• 🔐 feat: Add file locking to prevent concurrent access issues with users.json
• ⏱️ feat: Schedule:
  • Traffic updates every 1 minute
  • Backups every 6 hours with isolated lock management
• 📝 feat: Add detailed logging for easier troubleshooting and monitoring

🛠️ Script Enhancements

• 📦 refactor: Create shared scheduler install function (used in both install.sh & upgrade.sh)
• ⚙️ enhance: Improve upgrade.sh:
  • Add service checks
  • Backup handling
  • Color UI
  • Robust error handling
• 🧼 fix: Improve uninstall script to clean up HysteriaScheduler service completely
• 👤 feat: Add a default user after installation
• 🔁 fix: Automatically restart normal-sub service after changing its path

🤖 Telegram Bot Improvements

• ➕ feat: Show Normal-SUB link and QR code after adding user
• 🔁 If Normal-SUB is not available, fallback to Hysteria2 direct URI and QR
• 🧪 Improved input validation for username, traffic, and expiration