Function classify_evm_error 

pub fn classify_evm_error(error: &EvmToolError) -> ErrorClass

Classify EVM errors to determine retry behavior

This function uses structured error variants to determine classification, with a fallback to string matching for provider errors that contain generic messages.

Examples

let error = EvmToolError::NonceTooLow;
assert_eq!(classify_evm_error(&error), ErrorClass::Retriable);

let error = EvmToolError::InsufficientFunds;
assert_eq!(classify_evm_error(&error), ErrorClass::Permanent);