fuzz: add force-close support to chanmon_consistency#4381

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joostjager wants to merge 11 commits intolightningdevkit:mainfrom

joostjager:fuzz-force-close

Commits on Feb 19, 2026

chanmon_consistency: handle force-close-related events and messages

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chanmon_consistency: add SignHolderCommitment to supported signer ops

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chanmon_consistency: sync chain monitors alongside channel managers

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chanmon_consistency: relax exit invariants to allow force-closed channels

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chanmon_consistency: add force-close and broadcast confirmation actions

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chanmon_consistency: add large block height advancement actions

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chanmon_consistency: add SignHolderHtlcTransaction signer op

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chanmon_consistency: resolve timelocked HTLCs during settlement

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chanmon_consistency: verify claimable balances after settlement

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chanmon_consistency: assert claimed payments result in PaymentSent

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chanmon_consistency: add tests verifying force-close fuzzer actions

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