4/4 extraction tests passed; Agent execution is assessed separately.
actual-weekly-report-zip: Every installed file matches the downloadable ZIP byte-for-byte; no scripts auto-executed.
different-unicode-reference: A different package retains its reference file and exact Unicode bytes.
reject-path-traversal: Unsafe archive rejected before destination creation; no outside file written.
preserve-existing-installation: Existing installation rejected and all original file bytes preserved.
