Outcome

No transport is selected. The V4-01 acceptance matrix cannot be run honestly because pinned Windows libsrt/libsrtp2 development packages, the native two-candidate probe, an identical real-AU corpus with orientation/config metadata, and a target Wi-Fi impairment topology are absent.

Included

• reproducible prerequisite audit under spikes/transport`n- checked-in host fingerprint and exhaustive 192-cell NOT_RUN matrix
• bounded proposed queue declarations with capacity, deadline, byte/fragment limits, and overflow policy
• blocking ADR with exact unblocking gates and rollback
• behavioral tests for exhaustive matrix coverage and preservation-field requirements

Verification

• python -m pytest tests/test_v4_transport_audit.py tests/test_v4_phase0_tools.py -q (9 passed)
• python spikes/transport/audit.py --output docs/evidence/v4-01-transport-audit (expected exit 2 while blocked; 192 cells emitted)
• git diff --check`n

Scope

No product transport, Android, OBS, engine, or legacy production path changes. Simulated Phase 0 impairment is explicitly not used as selection evidence.