P51 v2.0: Rotational Stability of CCEGA Black Stars — Corrected Compactness C = 0.63, Ergoregion Outside Object

Correction to v1.0. C = 0.44 was incorrect (used ρ_c ≈ 2.6 ρ_nuc implicitly). Correct value with ρ_c = 7.4 ρ_nuc gives C ≈ 0.63–1.27. Ergoregion is exterior to the object for all masses. Ergoregion instability claim retracted. Rotational stability recovered via P60 (geometric suppression mechanism). Analytical verification that CCEGA black stars (4.56–12.0 M☉, C ≈ 0.44) are rotationally stable. Light ring confirmed at r = 3GM/c². Ergosphere buried inside stellar surface for all masses at maximum spin. No Friedman (1978) ergoregion instability. Maximum rotation 0.76–2.0 kHz. Stability is structural consequence of ρ_c = 7.4 ρ_nuc. Keywords: CCEGA, black stars, ergoregion instability, light ring, rotation, compact objects, angular momentum