relay-pool: enhance flexibility for message sending with `SendMessageOptions`#1124

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yukibtc wants to merge 3 commits intomasterfrom

Commits on Nov 7, 2025

relay-pool: change `Relay::send_msg` and `Relay::batch_msg` signatures
yukibtc
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relay-pool: change `RelayPool::batch_msg_to` signature
yukibtc
committed
relay-pool: add `SendMessageOptions` to `Relay` and `RelayPool` message sending APIs
yukibtc
committed