chore: update MB-X system role templates

cai

2026-06-04 9e70110cbad3ec2116ba394e40426dfd066c95a0

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time,price,prior_high_ref,trigger_note
09:45,21.25,21.55,below_prior_high
10:30,21.55,21.55,test_prior_high
11:15,21.40,21.55,failed_break
14:10,21.18,21.55,fade_below_intraday_avg_exit_trigger
14:50,21.05,21.55,weak_close