Gatekeeper review of PR #63 (comment 15139): - the 60 s default is what production runs (cmd/tapir never sets UploadIdleTimeout) and no test covered it; 1 ns, 60 ms or 24 h all left the suite green. Pinned via export_test.go, plus a socket test with the timeout unset that accepts a body with 100 ms gaps (60 ms mutant red). - the "upload idle bound unavailable" warning, the only signal that the control did not apply, is now asserted (removing it goes red). - the deadline clear on io.EOF was redundant (net/http resets the deadline before its background read) and is removed; ADR-033 text corrected (the part can end before the body, so "cleared on clean EOF" did not hold). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>