v1.5.2 — Discord auto-cleanup

FreeToPlay 1.5.2 — Discord auto-cleanup

Added

• Automatic Discord cleanup: The bot now continuously checks for sessions that started 6+ hours ago.
• When an event is over, its original Discord post (with the active RSVP buttons) is safely deleted.
• The bot posts a temporary 🏁 Session Concluded message in the channel letting everyone know it's over.
• The 🏁 Session Concluded message auto-deletes after 2 hours.
• The ❌ Event Cancelled message (when a host deletes an event) now also auto-deletes after 2 hours.
• The history remains permanently intact on the web dashboard calendar!