ALL IS WELL in 20260421 post optimization
                                                                                                                                                              
[post_opt_validation] 2026-04-21 gross=3.9954 limit=4.2000 (maxLeverage=4.00 tol=0.20)
[post_opt_validation] 2026-04-21 net=0.0891 bounds=[-0.1000,0.5000]
[post_opt_validation] 2026-04-21 turnover=0.1838 turnover_percent=4.60% limit=20.00%
[post_opt_validation] 2026-04-21 max|w|=0.0377 (no limit configured)
[post_opt_validation] PASSED all checks @ 2026-04-21.