[heifner]

ethereum-settled in flow-syndication-plugin-underwriting waited for the sysio.synd envelope to show its whole principal released. The batch operators' underwriter housekeeping runs every 10 minutes and prunes a released envelope as soon as its approval is acknowledged. When that pass lands between the approval and the step's first read, the row is gone and the step waits out its 420 s budget. e2e run 42721597511 failed this way: the approve, the crank that acknowledged it and pruneenv were pushed in one plugin pass, 16 s before the step's first read.

• The step now waits for the holder's LIQETH balance to reach its principal, which pruning cannot take back, then asserts it exactly.
• It no longer reads the envelope. ethereum-requested already checks the envelope's synd_total when it records it.
• The Solana phases need no change: they read envelopes only before approval, and their settlement reads balances and bonds.
• The settlement test runs with no envelope row, checks that the step waits for the credit, and refuses an over-credited holder and short operator capital.

[huangminghuang]

Reviewed the current diff and surrounding settlement/pruning logic. No actionable findings. Validation: isolated TypeScript compilation passed and all 58 settlement unit tests passed. The live cross-chain flow was not run.