EVM send max error on HD

[smk762]

To Reproduce

1. Login to HD
2. Create additional addresses for a token and parent
3. Fund one of the new token addresses without funding the parent (e.g. $1 USDC, 0 MATIC)
4. Try to withdraw the token using the newly funded address as source
5. See error

Screenshots

Expected behavior
The numbers in the error are confusing, and do not match the input.
This is most likely an "insufficient gas" error (see additional context).

• The error message should be humanised, and actionable. e.g. "no gas to pay for transaction, please add some to to continue."

In the withdraw form, source address list contains only funded coins, but for tokens, though they may be funded, the parent might not be. Given the app is tracking balances for each address of each coin, we should be able to detect when a token address has an impoverished parent. When this happens, it should be indicated in the withdraw form, so user has awareness earlier in the flow.

• If a source token address in the withdraw form has zero balance on its parent address, show a warning and disable the list row. i.e. show address with disabled theming, and warning icon with tooltip on mouseover.

This way the user knows not to select these addresses as source, and armed with this knowledge they can rectify before attempting a doomed transaction, destined to return an error.

Found in
0.9.3 RC eb2b0b8

Additional context
Send max attempt was from third address (2nd empty)

The error persisted when inputting 2 and 1 as the amount manually.
Switching to the first address was successful.

Third MATIC address was empty - which suggests the transaction error was due to insufficient gas.

[coderabbitai]

A summary of the changes CodeRabbit can apply:

• Implement EVM "insufficient gas" detection and humanized messaging by adding three new files (lib/shared/utils/gas_error_utils.dart, lib/shared/utils/address_gas_checker.dart, lib/views/wallet/coin_details/withdraw_form/IMPLEMENTATION_GUIDE.md) and applying the guide’s exact edits to withdraw_errors.dart (add getHumanizedMessage()), withdraw_form_bloc.dart (detect/format gas errors and infer parent token symbols), and send_confirm_form_error.dart (display actionable, token-aware error messages).

• Implement user-friendly insufficient-gas detection and messaging and add proactive address gas checks by adding new utility files (lib/shared/utils/gas_error_utils.dart, lib/shared/utils/address_gas_checker.dart), creating error-detection helpers for the extension (apps/extension/src/domains/SendFunds/utils/gasErrors.ts and .sed-tmp-error-method), modifying withdraw flow and UI to use them (add import and getHumanizedMessage in lib/mm2/mm2_api/rpc/withdraw/withdraw_errors.dart; add import in lib/bloc/withdraw_form/withdraw_form_bloc.dart and enhance error handling in _onSubmitted), replace/augment send-confirm error widget (lib/views/wallet/coin_details/withdraw_form/widgets/send_confirm_form/send_confirm_form_error.dart), and include implementation guide and notes (IMPLEMENTATION_GUIDE.md, IMPLEMENTATION_NOTES.md).

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