X72-46: Invisible-Escape Scalarization and Beltrami Tension Cancellation

Building on Round 45's result compressing the quartic escape of the bounded Piola defect to vanishing visibility, and writing the purely invisible boundary injection as a projected tensor source, this round uses the zero-divergence property of vorticity to completely scalarize the entire visible stress into a single scalar carrier: the sum of a local vorticity-amplitude modulation and a nonlocal vorticity–Beltrami tension potential — and from this derives an exact visibility formula and a scalar second-order law for the boundary injection. Proves that near-Beltrami invisible escape necessarily forces the vorticity amplitude toward spatial uniformity, while strongly intermittent exact Beltrami flow can never asymptotically approach pure invisibility — the two together constitute an escape dichotomy. Route halts at STOP-C50 (amplitude–Beltrami-tension cancellation/injection persistence gap): the long-time persistence of this scalar carrier's cancellation term is not yet dynamically controlled, left to the next round to treat its cancellation dynamics.