Claim C-0002 — The K-Field Architecture is Necessary
K-field architecture as structural multi-formation realisation. Reframed post-W4: no longer the sole mechanism (T-PreObj-1 (i) gives single-field F≥2 default). Superseded by Commitment 16 (CV-1.5.1): two-tier K_field (architectural cap) / K_act (dynamic stratum) decomposition; OAT-1 closes OP-0009-K. Confidence 65→80%.