Master Equation Revisited: Reflected Kähler Flow and the Viability Body. A single-action derivation of the two-sided memory law, the Weak Energy Condition, finite-acuity causal structure, and the Schrödinger limit

Canonical Semantic Framework; finite observer acuity; reflected Kähler flow; viability body; Schur complement; Fisher information geometry; min-max memory law; two-sided memory law; Skorokhod reflection; Weak Energy Condition; holonomic transport; spectral Noether current; causal bicone; chronology protection; Landauer principle; Bekenstein bound; Hawking radiation; von Neumann entropy