Unplugged AFK 0.1.0-alpha.3

• Renames the player marker to [UNPLUGGED] to distinguish disconnected representatives from ordinary AFK players.
• Adds optional FTB Ranks permissions for use, administration, automatic logout, duration limits, and limit bypasses.
• Adds separate per-member bypass_duration_limit and bypass_session_limit rank permissions while retaining the combined legacy bypass.
• Makes delayed automatic unplugging preserve the member's session-limit bypass.
• Fixes automatic representatives appearing as Anonymous Player or spawning away from the disconnect location.
• Adds UUID allowlist and denylist access modes for servers without a permissions mod.
• Adds configurable maximum durations and simultaneous unplugged-player limits.
• Adds /unplug status, /unplug cancel, /unplug next, and /unplug auto on|off.
• Adds opt-in automatic unplugging with a reconnect delay and safe server-shutdown cancellation.
• Improves admin session inspection with remaining time, location, status, and reason.
• Extends the public API with player-instance checks and remaining-session time.
• Avoids registering the optional /afk alias when another mod already owns it.