photoanalyzer/delivery_backlog/stories/US05-04-upload-verification.md

US05-04 — Verify, Retry, and Resolve Uncertain Uploads

Epic: E05

As a user, I want uncertain uploads verified before retry so a lost response cannot create duplicate server assets.

Acceptance criteria

• Retry policy distinguishes safe failures from accepted-but-unknown outcomes.
• Verification compares recorded local bytes with authoritative available evidence.
• Changed-after-upload bytes create a visible stale warning and block unsafe actions.
• Manual resolution records evidence and audit history; it never silently assumes success.

Automated tests

• Fault tests cover timeout before acceptance, acceptance then lost response, parser uncertainty, safe retry, changed bytes, and repeated verification.

Dependencies

• US05-03