Add avram attachment#1142

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wout wants to merge 9 commits intoluckyframework:mainfrom

wout:add-avram-attachment

Commits on Mar 14, 2026

Add final version of the model moduel for attachments
wout
committed

Commits on Mar 18, 2026

Use `Avram::Uploadable` instead of `IO` in save operation for uploading to cache
wout
committed