Bug with key management creating a new user

[Catrya]

When I reset a new user from the Account screen, without leaving the app, if I try to take an order, it fails.
This are the mostro logs when try to take an order:

2025-07-16T22:28:15.312735Z ERROR mostrod::app: Error checking trade index: Sending cantDo message to user for InvalidTradeIndex
2025-07-16T22:28:15.370542Z  INFO mostrod::util: sender key 00000018c1ae3147f9010b5d768ec2b121acf1a67f238be8e2bdd7c1f9eef705 - receiver key dd8c55bbb43d26e75489095375b861b3a9e1850c942a32cdac38271a94617c89
2025-07-16T22:28:15.383247Z  INFO mostrod::util: Sending DM, Event ID: da1e153aac1c786a97522f72847e04d58d3ffed6af5051b3fbde00c57e29bda7 with payload: "{\"cant-do\":{\"version\":1,\"request_id\":null,\"trade_index\":null,\"id\":\"b656a915-eb22-4bbd-b6e2-d923892d68c2\",\"action\":\"cant-do\",\"payload\":{\"cant_do\":\"invalid_trade_index\"}}}"

Is need it to close the app and reopen it if i want to take an order.

[Catrya]

fixed in #246