System updates

✨ New Features
⏳ UTM-Based Welcome Bonus Expiration
Set a custom expiration period for each UTM-based welcome bonus individually. Configure expiration in days, hours, or months. If a custom expiration is set, it overrides the global default. Fully backward compatible.
🚀 Improvements
💬 Inbox Improvements
Channel icons and names are now displayed for messages, contacts show their channel source, customer avatars link directly to their profile, and infinite scroll has been added for message history.