[LATTICE] 'Failed to make request to device: signal is aborted without reason' when importing 5 accounts

## Description
When attempting to import 5 accounts from a Lattice1 hardware wallet using the standard HD path, the import fails with the error:
"Failed to make request to device: signal is aborted without reason"

## Steps to Reproduce
1. Navigate to Add hardware wallet
2. Select Lattice1
3. Log in via the Lattice1 portal
4. Select 5 accounts from the standard HD path
5. Click Unlock
6. Observe — accounts fail to import

## Expected Result
All 5 selected Lattice1 accounts are successfully imported into MetaMask.

## Actual Result
The import fails with the error:
"Failed to make request to device: signal is aborted without reason"

Only 2 accounts were imported.

### Detection stage
Release Candidate

### Version
13.46.0 RC

### Build type
RC (Release Candidate)

### Browser
Chrome

### Operating system
Not specified

### Hardware wallet
Lattice1

## Additional context
Issue may be related to a request timeout or AbortController signal being triggered prematurely when handling multiple account imports in a single request. Not confirmed whether importing fewer accounts (e.g. 1–2) succeeds.

## Media

---
*Filed via Claude bug reporter*

Start by reproducing the Lattice1 import flow in Chrome on version 13.46.0 RC, selecting five accounts from the standard HD path. Trace the Lattice1 account-import request and its timeout or AbortController handling, comparing multi-account behavior with one or two accounts. Done means all five selected accounts import successfully without the abort error.

Written by the indexing model from the issue text.