lxy 62c4fa1f12 docs: add ultrashort validation specs		3 mesiacov pred
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specs	62c4fa1f12 docs: add ultrashort validation specs	3 mesiacov pred
.openspec.yaml	62c4fa1f12 docs: add ultrashort validation specs	3 mesiacov pred
README.md	62c4fa1f12 docs: add ultrashort validation specs	3 mesiacov pred
design.md	62c4fa1f12 docs: add ultrashort validation specs	3 mesiacov pred
proposal.md	62c4fa1f12 docs: add ultrashort validation specs	3 mesiacov pred
tasks.md	62c4fa1f12 docs: add ultrashort validation specs	3 mesiacov pred
validation-results.md	62c4fa1f12 docs: add ultrashort validation specs	3 mesiacov pred

add-robust-ultrashort-validation

Add statistically robust ultra-short strategy validation and promote only candidates with positive confidence intervals.