IV.T86 — Rydberg prediction at 0.025 ppm

The tau-predicted Rydberg constant R_infinity^(tau) ~ 10,973,731.29 m^(-1) compared with CODATA R_infinity = 10,973,731.568157(12) m^(-1) gives relative deviation ~0.026 ppm, inheriting the 0.025 ppm precision of the electron mass prediction.