Velocity Limbo Handler

Added

• /vlh reload and /vlh status admin commands. reload hot-reloads the plugin configuration without a server restart; status provides a runtime overview of the handler's current state.

Changed

• Refactored internal queue state management for improved reliability and clarity.
• Introduced tiered priority to the reconnect queue, allowing higher-priority players or conditions to be processed ahead of the standard queue. This replaces the previous flat queue model.