Client-encrypted thumbnails

[codebestia]

Thumbnails are generated + encrypted on the client and uploaded as their own files rows. The thumbnail fileId + key ride inside the parent file message payload. Server never generates previews from ciphertext. Missing/optional thumbnail handled gracefully.

Acceptance criteria:

• Thumbnail is a separate encrypted file referenced by the message
• Server never derives previews from uploaded bytes
• Missing/optional thumbnail handled gracefully

[ojuotimi932]

@ojuotimi932 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hi Maintainer Can I resolve this kindly assign

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[felladaniel36-hash]

@felladaniel36-hash has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I'd like to claim this issue. I have reviewed the details and can begin working on a fix right away. Please assign it to me if it's still available. Thanks!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @felladaniel36-hash to this issue.

[DeJune06]

@DeJune06 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

hello my name is June please can i work on this?

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[drips-wave]

Congratulations, @DeJune06! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @DeJune06: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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