Accelerated Structural Reanchoring of Coherent Fields under Finite-Cost Control

This preprint develops a finite-cost controlled-field formulation of accelerated structural reanchoring for coherent fields. The central object is a structural anchoring landscape (K(x,t)), coupled to a coherent density and treated as an admissible control field. The work introduces TEA diagnostics based on target coherence, residual origin mass, target-region mass, fragmentation, and structural cost. It proves an exact harmonic reanchoring theorem, derives finite-resource cost scaling, and presents numerical tests involving nonlinear stationary profiles, bounded controls, anharmonic perturbations, phase and structural noise, solver comparison, and a separable two-dimensional validation. This is a preprint version prepared for journal submission.