SecondWind

Three fixes, backed by a new runtime test suite (63 assertions on Paper 1.21.11 and 26.2):

• Void, ✨, /kill and the world border now kill a downed player as vanilla would - previously a downed player fell through the void immortal for bleed-seconds, and admins could not /kill them.
• Slowness, Mining Fatigue, Weakness and Glowing the player already had from other plugins or items are restored after revive/bleed-out/quit instead of being wiped.
• revive-seconds: 0 now means instant revive instead of an error every scheduler tick.
• Legacy & colour codes are kept when the text also contains <...> decoration.
• The jar reports its real version in /plugins. No config changes needed.