ln: reduce size_of Event from 1856 B -> 720 B, prep for inline storage in offer `*Contents`#3723

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phlip9 wants to merge 2 commits intolightningdevkit:mainfrom

lexe-app:phlip9/reduce-events-size

Commits on May 17, 2025

offers: box `*Contents`. reduce size_of `Event` 1856 -> 1072
phlip9
committed
events: box `AnchorDescriptor`. reduce size_of `Event` 1072 -> 720
phlip9
committed