ALL IS WELL in 20260428 post optimization
                                                                                                                                                              
[post_opt_validation] 2026-04-28 gross=3.9964 limit=4.2000 (maxLeverage=4.00 tol=0.20)
[post_opt_validation] 2026-04-28 net=0.0689 bounds=[-0.1000,0.5000]
[post_opt_validation] 2026-04-28 turnover=0.1814 turnover_percent=4.54% limit=20.00%
[post_opt_validation] 2026-04-28 max|w|=0.0370 (no limit configured)
[post_opt_validation] PASSED all checks @ 2026-04-28.