* fix(artifacts): report malformed ZIP archives as format failures
zip.js signals archive faults (missing end-of-central-directory record,
unrecognized format, overlapping members, corrupt member data,
unsupported compression) as plain Errors. ZipArtifactReader passed them
through untyped, so the artifact provider's fallback reported every one
as `io` with no detail and told the caller to "check file access".
Type these faults at the ZIP reader boundary: structural and data
corruption become `format` failures and unsupported archive features
become `unavailable`, each carrying the zip.js reason as detail. This
covers enumeration, the getData rejection, and the WritableStream abort
path that delivers corrupt-data errors first.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* test(artifacts): share the ZIP inventory failure assertion
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
cd2ad1f240