Add splice RBF support#888

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jkczyz wants to merge 7 commits into

lightningdevkit:mainfrom

jkczyz:2026-04-splicing-payment-using-tx-type

Commits on Jun 4, 2026

Add rbf_channel API for fee-bumping pending splices

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Commits on Jun 5, 2026

f - Rename rbf_channel to bump_channel_funding_fee

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Tie funding payment status transitions to Lightning lifecycle events

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f - Preserve funding details when a splice candidate is replaced

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f - Reject on-chain RBF of funding and splice payments

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f - Rename persist_pending to persist_pending_payment

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Persist payment transaction data without blocking LDK

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