Observables follow arXiv:2607.08505 Sec. IV.A, i.e. <|phibar|>, chi = V(<phibar^2> - <|phibar|>^2), U_L, kappa_2^(site) and <S>/V. xi_2 and F are removed. An autocorrelation table precedes the observables and the BibTeX reference closes the card. Supersedes PR #1.
README: concise version with physical quantities, repo name phi4-generative (#1)
