Fail HTLCs from late counterparty commitment updates in ChannelMonitor #4434

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joostjager wants to merge 7 commits intolightningdevkit:mainfrom

joostjager:fix-force-close-in-progress-monitor-drops-htlc

Commits on Mar 4, 2026

Clarify that each pending monitor update ID must be marked complete

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claude
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Extract shared dummy_monitor helper to test_utils

joostjager
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claude
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Extract watch_channel_internal/update_channel_internal from Watch impl

joostjager
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claude
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Add deferred bool to ChainMonitor

joostjager
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claude
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Implement deferred monitor write queueing and flushing

joostjager
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claude
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Fail HTLCs from late counterparty commitment updates after funding spend
joostjager
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f: fixes
joostjager
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