[Bug]: For Send BTC operation received activity showing Source Account as Unavailable

**Describe the bug**

For any Send operation for BTC network, the received activity displays Source Account as Unavailable

There is a related ticket for similar issue is extension as well logged in RC 13.43.0 (still in open state): https://github.com/MetaMask/metamask-extension/issues/45238

**Screenshots/Recordings**

**Steps to reproduce**

1. Send BTC from account 1 to account 2
2. wait for confirmation
3. verify the BTC received event both in Activity list page and token details page

**Error messages or log output**

```shell

```

**Where was this bug found?**

Internal release testing

**Version**

8.9.0

**Build number**

4532

**Build type**

None

**Device**

Pixel 9 Pro XL

**Operating system**

Android

Reproduce the BTC send flow on Android using version 8.9.0, then inspect the Activity list and token details entry points for received events. Compare the source-account data shown for the received event with the sending account, and verify both views display the source account after confirmation.

Written by the indexing model from the issue text.