fix: Add missing fields to SimulatedTransactionResponse #3768
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Add fields from Solana RPC spec that were missing from simulateTransaction response: - loadedAccountsDataSize: size of loaded accounts data in bytes - replacementBlockhash: blockhash when replaceRecentBlockhash is used - fee: transaction fee in lamports - preBalances/postBalances: SOL balances before/after simulation - preTokenBalances/postTokenBalances: SPL token balances - loadedAddresses: addresses loaded from address lookup tables These fields bring simulateTransaction to parity with getTransaction, enabling developers to evaluate transaction effects without guessing from logs. Added corresponding Superstruct schemas and tests. Ref: anza-xyz/agave#6750
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Summary
SimulatedTransactionResponsefrom Solana RPC specNew fields:
loadedAccountsDataSize- size of loaded accounts data in bytesreplacementBlockhash- blockhash whenreplaceRecentBlockhashis usedfee- transaction fee in lamportspreBalances/postBalances- SOL balances before/after simulationpreTokenBalances/postTokenBalances- SPL token balancesloadedAddresses- addresses loaded from address lookup tablesThese fields bring
simulateTransactionto parity withgetTransaction, enabling developers to evaluate transaction effects without guessing from logs.Ref: anza-xyz/agave#6750