backport: Merge bitcoin#27151, 25849, 25077#7128

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vijaydasmp wants to merge 3 commits intodashpay:developfrom

vijaydasmp:Feb_2026_05

Commits on Feb 17, 2026

Merge bitcoin/bitcoin#27151: util: Remove duplicate include

fanquake
authored and
vijaydasmp
committed
Merge bitcoin/bitcoin#25849: refactor: Remove not needed empty RPC doc std::string

fanquake
authored and
vijaydasmp
committed
Merge bitcoin/bitcoin#25077: Fix chain tip data race and corrupt rest response

fanquake
authored and
vijaydasmp
committed