backport: Merge bitcoin/bitcoin#28136, 27581, 18919, 25634, 25284, 24957#7121

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vijaydasmp wants to merge 6 commits intodashpay:developfrom

vijaydasmp:Feb_2026_01

Commits on Feb 1, 2026

Merge bitcoin/bitcoin#25634: wallet, tests: Expand and test when the blank wallet flag should be un/set

ryanofsky
authored and
vijaydasmp
committed
Merge bitcoin/bitcoin#18919: test: Add gettransaction test for "coin-join" tx

fanquake
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vijaydasmp
committed
Merge bitcoin/bitcoin#27581: net: Continuous ASMap health check

achow101
authored and
vijaydasmp
committed
Merge bitcoin/bitcoin#28136: refactor: move GetServicesNames from rpc/util.{h,cpp} to rpc/net.cpp

achow101
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vijaydasmp
committed
Merge bitcoin/bitcoin#27829: rpc: fix data optionality for RPC calls.

achow101
authored and
vijaydasmp
committed
Merge bitcoin/bitcoin#26480: test: Remove wallet option from non-wallet tests

achow101
authored and
vijaydasmp
committed