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Port of the LeiosDB part of #2334 (leios-prototype) onto the Ouroboros.Consensus.Storage.LeiosDB modules. Tx bytes move from the shared, hash-keyed `txs` table to `ebTxBytes`, keyed by (ebHashBytes, txOffset) like `ebTxs`. The body write pre-allocates one zeroblob row per tx; `writeTxs` now takes the EB's point and offsets, and fills the rows in place, guarded on the row existing, being unfilled and having the declared size. Completion counts the filled rows, so `ebsMissingTxs` goes away. GC evicts an EB with three range deletes, so `gcTxCandidates`, `idx_ebTxs_txHashBytes`, the orphan-tx sweep and its startup re-staging go away too. Not ported: the cross-EB fills (LocalFill), which need the LeiosTxCache. No migration: existing LeiosDB files must be wiped. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> asdfsdfa
The bench declared every tx as 200 bytes in the EB body but wrote 16 KiB payloads. Now that a tx write is dropped unless its size is the declared one, no tx bytes were written at all: no closure ever completed, and the timings measured an empty workload. Declare the payload size instead. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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