ALL IS WELL in 20260120 post optimization
                                                                                                                                                              
[post_opt_validation] 2026-01-20 gross=3.9969 limit=4.2000 (maxLeverage=4.00 tol=0.20)
[post_opt_validation] 2026-01-20 net=0.0108 bounds=[-0.1000,0.5000]
[post_opt_validation] 2026-01-20 turnover=0.3297 turnover_percent=8.25% limit=20.00%
[post_opt_validation] 2026-01-20 max|w|=0.0368 (no limit configured)
[post_opt_validation] PASSED all checks @ 2026-01-20.