Fix executeValidatePreimage to match Rust prover validation #398
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The Solidity executeValidatePreimage function was missing validations present in the equivalent Rust ValidateCertificate opcode handler. - Add check for preimageType > 255, setting ERRORED status - Add check for preimageType 4-255, returning 0 without memory access - Add ptr validation using isValidLeaf() before memory proof - Reorder operations to validate preimageType before memory access
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The Solidity executeValidatePreimage function was missing validations present in the equivalent Rust ValidateCertificate opcode handler.