lukasandClaude Opus 5.5
3957dd540a
Attachments are no longer stored apart from their message (they were kept twice: base64 inside the raw message and decoded on their own). The indexer records the MIME part (attachments.part_index, migration 0023); downloads, zip, inline images, thumbnails and forwarding take it out of the message; videos stream from a short-lived copy (kept a day, 1 GiB per user). A background pass on worker start removes the copies stored before, each only after checking it can be taken out again (spec App. D §D.6 item 1, criterion corrected to <= 60%). A nightly job (03:47, after the Trash/Spam purge) removes files nothing refers to any more — deleted or purged messages, previews of attachments gone, uploads no draft has used for a week, expired streaming copies. Files younger than an hour are left alone; a sent message waiting for its Sent copy is held until its job is done. Account removal keeps files a draft still uses. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>