feat(bot-oo): detect nonce backlog and attempt self-tx cancellation #4915
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md0x
requested review from
Reinis-FRP,
chrismaree and
mrice32
as code owners
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PR description
Adds a guardrail to the OO bot to detect nonce backlogs before running settlements.
If pending > latest, the bot skips settlements and attempts to clear the backlog by submitting a 0-value self-tx at nonce = latest. If it succeeds, it exits cleanly; if all attempts fail, it logs an error and exits early.
Why:
Submitting new settlements while txs are stuck can compound nonce issues. This makes the bot fail-safe, either self-healing or exiting loudly to avoid further damage.