FRC 100.002 v2.5 - Coherence in Chaos: Diffusion, Localization, and Decoherence in the Standard Map / Quantum Kicked Rotor Family

FRC 100.002 v2.5 preserves the Standard Map / Quantum Kicked Rotor chaos program, the KAM-structure functional, localization/decoherence pilots, the Ruelle-Pollicott negative result, and the demoted stadium appendix. It corrects only the framework ledger notation. The canonical reciprocity law remains dS + k* d ln C = 0. In this paper's declared information-nat realization k*mu_nat=1, and J_sys=d[S_sys,mu+k*mu_nat ln C_mu]/dt is reported only as a system-only diagnostic. Because no environment is modeled, J_sys is not automatically entropy production or a boundary residual. The relation lambda=-d_eS is admissible under a declared boundary convention and is neither imposed universally nor rejected by fiat.