backport: Merge bitcoin#28486, 28969#7187

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vijaydasmp wants to merge 2 commits intodashpay:developfrom

vijaydasmp:March_2026_2

Commits on Mar 4, 2026

Merge bitcoin/bitcoin#28486: test, bench: Initialize and terminate use of Winsock properly

fanquake
authored and
vijaydasmp
committed

Commits on Mar 7, 2026

Merge bitcoin/bitcoin#28969: fuzz: Avoid signed-integer-overflow in wallet_notifications fuzz target

fanquake
authored and
vijaydasmp
committed