[1] Added GUI-based team creation with color selection menu (configurable via `settings.creation.use_gui_color_selection`)
[2] Fixed MiniMessage parsing error in color selection GUI by replacing legacy color codes with proper MiniMessage format
[3] Fixed `%justteams_online_members%` placeholder to work correctly across servers using player sessions database
[4] Added missing `%justteams_offline_members%` placeholder for cross-server offline member counting
[5] Added missing `%justteams_team_color%` placeholder that returns team color name (e.g., RED, BLUE, GOLD)
[6] Added missing documented placeholders: `%justteams_team_balance%`, `%justteams_team_max_size%`, `%justteams_team_kills%`, `%justteams_team_deaths%`, `%justteams_team_kdr%`, `%justteams_pvp_status%`
[7] Fixed cross-server invitation acceptance by checking database invites when local cache is empty
[8] Added `isPlayerOnlineAnywhere()` method to check player presence across all servers via `donut_player_sessions` table
[9] Fixed ender chest lock acquisition to handle stale locks (>5 minutes) and inactive server locks (>2 minutes)
[10] Fixed cross-server team member online status display in GUI - now shows players online on other servers correctly