Bans, kicks, timeouts

• !ban @user [duration] [reason] — ban, optionally for a while (1h, 2d). Auto-unbans when it expires.
• !tempban @user <duration> [reason] — same idea, explicit duration.
• !unban <user id> — lift a ban.
• !kick @user [reason] — remove a member.
• !timeout @user <duration> [reason] — Discord timeout (10m, 1h, 1d).

LavaBot checks role hierarchy first and DMs the user the reason when it can.