Enhancements for Transfers REST API

We primarily work with transfers via the REST API, and we’ve encountered several limitations that make integration and usage less efficient. We would like to suggest the following improvements:

Expanded search capabilities
1. The /transfer endpoint currently supports filtering only by expense_account.id and income_account.id. It would be very helpful to have additional searchable fields to improve querying flexibility.

2. Linking between transfers and transactions
At the moment, it is difficult to trace relationships between transfers and the transactions they generate (and vice versa). Introducing a linking field would greatly simplify this.

3. Consistent datetime format for transferredAt
The transferredAt field currently supports only the YYYY-MM-DD format (e.g., 2026-01-31). For better API consistency and interoperability, it would be beneficial to support a standard ISO 8601 datetime format, such as 2026-01-31T00:46:19.884319Z.

These enhancements would significantly improve the usability and consistency of the API for transfer-related operations.

Thank you for your consideration.