Feature: Auto match multi-currency transfers

[pbendus]

Describe the feature

Currently, when transferring money between accounts with different currencies (e.g., USD to local currency in Revolut), the app does not recognize these transactions as transfers. Instead, it prompts the user to create a separate transaction manually.

This feature request proposes an enhancement that would allow the app to automatically match multi-currency transfers across accounts. The system should be able to detect linked transactions based on similar timestamps and amounts (after currency conversion) and categorize them as a transfer.

Why is this feature important?

• Helps users properly track money movements between their own accounts without manual intervention.
• Eliminates the need to manually categorize transfer transactions.
• Many users frequently deal with currency conversions in modern banking apps like Revolut, Wise, and others. Auto-matching transactions would make tracking finances much more seamless.

Additional context, screenshots, and relevant links

A potential implementation could match transactions based on exchange rates, timestamps, and amounts within a reasonable variance range.

[zachgoll]

Closing this as we've now got an issue open:

#1852