Navier-Stokes C1
Reading-2 witness · two Grashof regimes
Postulate-1 Reading-2 regime-2 witness now replicates at G=200 and G=300 under a portable objective. Dimension-robust (d=32 / d=18), 942,834 G=300 witness pairs, composed at matching ε_K. C1 remains UNPROMOTED until an external PDE reviewer pass closes promotion criterion (c).