DisBot

Added footer field to custom commands

Added thumbnail field to custom commands

Added image field to custom commands

Added message variables: {playerlist}, {players}, {status}, {date}, {time}, {uptime}

Added per-command cooldowns (shared across prefix and slash commands)

Added channel restriction via allowed-channels in config

Fixed minimizeJar to reduce jar size (~50%)

Updated example commands (ip.yml, players.yml, help.yml)