X72-38:輸運Riesz交換子消耗

承接Round37把剩餘nonlocal forcing壓成transport–Riesz commutator [u·∇,𝒯_0]q(STOP-C41),指出該輪僅用norm envelope處理此commutator失之粗糙,改直接研究defect-energy pairing⟨E,[u·∇,𝒯_0]q⟩。利用𝒯_0的self-adjoint結構、不可壓縮性與偶核對稱性,證明Pressure Self-Commutator Null Identity與exact triple-increment representation,將regularity burden精確降為one-total-derivative的臨界端點問題s_u+s_E+s_q=1(次臨界時>1即可閉合)。STOP-C42(Triple-Increment Endpoint/Critical Dini Gap)把缺口交給下一輪尋找Dini/log端點增益。