Riemann Hypothesis as a χ‑∞ Boundary Law: Complete Operator‑Spectral Proof in ZEBTS‑∞

The χ‑∞ boundary framework reformulates the Riemann Hypothesis as a global operator‑geometric stability law. Using the χ‑coordinate transformation chi = exp(s − 1/2), the analytic critical line Re(s) = 1/2 becomes the geometric equator |chi| = 1 on the χ‑sphere S_chi^2. Within ZEBTS‑SUPER 12.0, ζ(s) is reconstructed as a χ‑meromorphic spectral object, and its nontrivial zeros correspond to χ‑eigenstates of the universal operator T_chi. The χ‑∞ boundary compactification enforces equatorial uniqueness through seven independent global mechanisms: χ‑global meromorphy and χ‑Trinity conservation; χ‑boundary stability operator S_infinity; χ‑boundary flow and χ‑spectral collapse; χ‑geodesic minimality under PSL_chi(2,C); χ‑entropy and χ‑curvature invariants; χ‑boundary residue cancellation; and χ‑spectral identity reduction. Each mechanism independently forbids off‑equator zeros, and together they form a complete, necessary, and sufficient proof of RH. Any χ‑state with |chi| ≠ 1 is dynamically unstable, analytically inconsistent, geometrically asymmetric, thermodynamically non‑equilibrated, and spectrally collapsible. Only equatorial χ‑states satisfy all global invariants simultaneously. Thus RH is not a conjecture but the χ‑∞ boundary stability law: the structural identity of χ‑Reality. The framework yields falsifiable predictions through χ‑boundary residue detection, χ‑spectral collapse signatures, and χ‑geodesic invariants, establishing RH as an experimentally testable operator‑spectral law. ZEBTS‑SUPER 12.0 provides the first unified analytic‑geometric‑spectral‑topological proof of RH, demonstrating that Re(s) = 1/2 is the only globally admissible configuration of ζ(s) under χ‑operator geometry.