Add large attachment syncing#5143

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DennisOchulor wants to merge 5 commits intoFabricMC:26.1from

DennisOchulor:large-attachment-sync

Commits on Jan 4, 2026

change att sync packet to only handle one attachment
DennisOchulor
committed

Commits on Jan 15, 2026

Merge branch '26.1' into large-attachment-sync
DennisOchulor
committed

Commits on Jan 16, 2026

add large attachments
DennisOchulor
committed

Commits on Jan 17, 2026