Price сhanging during BithompID payment

[Anna15170221]

Users refresh the page after starting the payment process or switch devices (e.g., start on a phone and continue on a computer).
This probably causes the payment price to change. It needs to be checked.

Proposed solutions during discussion of the problem:

• Implement price updates using a websocket to ensure real-time accuracy.
• Lock the price at the start of the process and store it in the URL using dt to avoid extra backend requests.
• If updatedAt exceeds 30 minutes or an error occurs, prompt the user to restart the process.
• If the process has already started, automatically show the amount received without requiring additional confirmation clicks.