Atet's Infrastructure

Added support for entity selectors (@a, @p, @e, etc.) across all commands, allowing actions to target multiple players at once.

/infrastructure give @a — assign a reward to all online players in one command /infrastructure pause/unpause @a — pause or resume rewards for multiple players at once /infrastructure remove/removeall — now accepts multiple targets /infrastructure list @a — view rewards for multiple players in one command

Single-player commands continue to work exactly as before.