Direction of vorticity on the high set: what is closed, what is false, and the remaining Campanato bound

This note is the geometric ledger for vorticity direction of unmodified 3D incompressible Navier–Stokes on the maximal classical interval [0, T*). What it proves. The implication Definition 7.1 ⇒ T*=∞ as Constantin–Fefferman / Beirão da Veiga–Berselli (not a new regularity theorem). The direction equation on {r>0}, with Pξ and ν|∇ξ|²ξ. S ∈ L²_t L²_x from energy and Calderón–Zygmund on L², without ‖ω‖_∞. The claims drift = O(1/Ω) and De Giorgi–Nash–Moser ⇒ uniform C0,1/2 of ξ on E(t) are false. Pairings are named as the real identities: stretching is a real cubic in ω; Arnold is real alternating bilinear; B(F,G) is real symmetric bilinear; S is a real symmetric tensor; ξ is a real unit vector field, S²-valued. This is not a Clay solution. Distinct from Zenodo 22153742 (Ω₀ lattice note).