fix(chain): prevent integer overflow in SpkIterator::new_with_range#2180

evanlinjin merged 1 commit intobitcoindevkit:masterbitcoindevkit/bdk:masterfrom

tnull:2026-04-fix-spk-iterator-overflowtnull/bdk:2026-04-fix-spk-iterator-overflowCopy head branch name to clipboard