116360b004
10/10 sweep × 22 tests = 220/220 hard-pass post-recalibration on the merged branch (~5m 28s per sweep). Stability bar from `2026-05-07-cross-stack-interop-ci-gating.md` met; both `hang-interop` and `browser-interop` jobs in build.yml since commit `21947bc5`. Marks Priority 3 closed in: - `2026-05-07-cross-stack-interop-ci-gating.md` - `2026-05-07-t16-closure-roadmap.md` - `2026-05-06-cross-stack-interop-test-results.md` (CI integration § wired) - `2026-05-06-cross-stack-interop-test-gap-matrix.md` (history notes) T16 closure roadmap is now done end-to-end: - Priority 1 ✅ closed by `:quic` main merge (commit `8f8251a5`) - Priority 2 ✅ closed by hard-floor tightening (commits `04be38ad`, `029329af`, `f8dc9c59`) - Priority 3 ✅ closed by CI yaml + 10/10 stability (commit `21947bc5`) Open follow-ups remain (browser hot-swap re-attach, post-reconnect listener cliff, framesPerGroup production rerun) but none block T16 closure.