Validation-to-Test Generalization Boundaries of Fixed-Budget Sequence–Class–Scale Coordinated Sampling for Complex Water-Surface Object Detection

Author-authorized Day45B public provenance package for the frozen water-surface object-detection study. It contains only 34 derived/public method, preregistration, aggregate-result, figure/table-source, hash-ledger, execution-ledger, and project-authored code artifacts. Raw images, raw labels, checkpoint binaries, raw predictions, and all REVIEWER_ONLY materials are excluded. The confirmatory scientific state remains PRIMARY=FAIL, SAFEGUARD=FAIL, and TEST_NOT_SUPPORTED.