Cache leak on player quit.
GUI material crash on 1.13 uses Material.LIME_WOOL and Material.SUNFLOWER which exist in 1.13+ (flattening).
GUI title check uses
New Features:
4. {displayname} placeholder — Chat format and hover lines currently only support {player} (raw username). Add {displayname} to use the player's display name (set by Essentials nicknames, etc.).
/dch version subcommand — Show plugin version, server version, detected hooks (LuckPerms, PAPI), and Folia status. Useful for support/debugging.
Player quit cache cleanup listener — Automatic cleanup of cached data when players leave.
Configurable plugin message prefix — The hardcoded &a[DraxChatHover] / &e[DraxChatHover] in GUI messages should be configurable via messages.prefix in config.
