FIX7 Implementation Spec Completion Final Verdict

Final status FIX7_IMPLEMENTATION_SPEC_COMPLETE_READY_FOR_T1_REVIEW. Every T1 blocker has a concrete specification. This authorizes T1 review, not production implementation. After T1 review PASS, T1 may author/local/rehearsal test exact implementation and Level-B packet. All live actions remain operator-gated. Any conflict returns FIX7_IMPLEMENTATION_BLOCKED_SPEC_CONFLICT; T1 must not improvise. Zero-hardcode PASS. PG-first/native/driven PASS. Self-evaluation 20/20 PASS. Stage 2.6B, permits, REAL_RUN and QT001 apply remain blocked.