Advanced Whitelist

Added

• Discord whitelist management via slash commands
• Discord /request modal for join requests with a reason
• Discord request details via /whitelist info
• Discord protocol logging for whitelist actions
• Optional Discord role-based permission checks
• Optional Discord role requirement for using the request modal
• /whitelist reload command
• Request reason display in /whitelist requests

Changed

• Updated project compatibility for Paper 1.21.x up to 1.26.2
• Updated build configuration for modern Paper and Java 21 environments
• Expanded README documentation for commands, permissions, compatibility, and Discord configuration
• Improved request overview to show reason and expiration more clearly

Fixed

• Fixed missing request reason in /whitelist requests
• Fixed command compilation issue caused by org.jspecify.annotations.NonNull
• Hardened Discord bot shutdown during server stop to reduce shutdown-time errors
• Prevented whitelist command issues when Discord bot or protocol channel is not configured