Round 2 verification audit for C087

Model: gpt-5

Claim: Fig. (liouvillian_gap): the Liouvillian gap as a function of Omega_C and sin^2(gamma) kappa^opt, where kappa^opt is the optimal repump rate from a multivariate minimization over (Omega_C,gamma).

Source alignment: source/supp_content.tex:267-271 (Fig. liouvillian_gap)

Prior official verdict: partial with failure_reason None.

Executable evidence: run.py. Sandbox rerun logs: run.log.

Independent audit: I scanned the copied script for imports/shared helper dependencies and reran it through the sandbox. The code is self-contained in this attempt directory and targets the claim strategy: Recompute the optimized Liouvillian gap map and compare to the figure.. I checked the relevant family model rather than relying only on exit status; the rerun is treated as one reproducibility input.

Decision: Round 2 verdict is partial with failure_reason None and limitations ['visual_match_only', 'paper_text_only_reimplementation']. Notes: Reproduced Fig liouvillian_gap_with_beta: gap vs Omega_C (0..10J) and sin^2(gamma)*kappa^opt (0..1.9J), kappa^opt = argmax_kappa gap. Vertical dark-red lobe near Omega_C~2J reproduced; global max gap=0.123J at Omega_C=1.87J, gamma=0.24pi, kappa^opt=2.59J, matching paper hotspot and the paper colorbar max (~12e-2 J). Note: paper colorbar max ~0.12J = full gap = 2x the text's R_t^opt=0.061J (cf C084/C085). Tier-A visual match (visual_score 0.85); no raw data, no digitization -> capped at partial. See plot_comparison.json.