[PASS] gap fill: long filled at ask_open + slip, not at the trigger  (entry 111.0)
[PASS] gap fill: R measured on the planned risk (trigger - stop = 5)
[PASS] entry minute: pessimistic books the stop  (sl_entry_minute R -1.200)
[PASS] entry minute: optimistic holds to the flat  (flat R +0.100)
[PASS] double break: booked as about -1R minus cost  (R -1.200)
[PASS] bar-close: fill = ask_open of the first minute >= t_signal + slip  (entry 101.0)
[PASS] stop and target in one minute: the stop wins  (sl)
[PASS] flat: bid_open of the flat minute - slip  (exit 107.0)
[PASS] cost: R(2x) - R(1x) = -cost_r
[PASS] cost: 1x executed cost = (spread + 2 slip) / risk
[PASS] random walk, symmetric bracket: no edge before cost (|t| < 3)  (optimistic gross +0.0284R t +0.54; pessimistic gross +0.0284R)
[PASS] random walk: net of spread is negative  (net -0.0049R n 1407)
[PASS] stale pre-open quote: the old loop invents an edge on pure noise (t > 5)  (naive gross +0.9072R t +10.50 n 1497)
[PASS] stale pre-open quote: hdam_sim shows none (|t| < 3, both modes)  (hdam gross optimistic +0.1547R t +1.89 / pessimistic +0.1547R t +1.89, n 1498)
[PASS] staleness guard refuses the frozen window  (RWS 07:00-08:00 UTC: stale quotes in {2010: np.float64(1.0), 2011: np.float64(1.)
[PASS] Validation is sealed for HDAM (data_loader raises)
[PASS] discovery book ends <= 2020-12-31  (2020-12-31 23:59:00+00:00)
[PASS] index strictly increasing (UTC)
[PASS] true clock: the 09:30 ET minute is the start of the RTH volatility jump  (median range 09:29 1.50 / 09:30 3.30)
[PASS] staleness guard passes the live NY open on US100  (max flat share 0.052)
RESULT: ALL PASS