[BUG]: Can't swap SATS from the Lightning Chain to BTC

- [x] I checked to make sure that this issue has not already been filed

**Describe the bug**
When I try to swap SATS (Lightning), the mobile app doesn't recognise it as a token/coin that can be swapped, even though it's said to be swappable at https://onekey.so/blog/ecosystem/best-lightning-network-wallets-in-2025-comprehensive-review-onekey-recommendation/

**To Reproduce**
Steps to reproduce the behavior:
1. Open mobile app
2. Click on 'swap'
3. Search for SATS (Lightning Chain)
4. No results other than "Satoshi's Vision" ETH token

**Expected behavior**
Expected to be able to swap my SATS into BTC

**Screenshots**

**Smartphone:**
- Device: Samsung Galaxy A03
- OS: Android 13
Using OneKey app from github, downloaded through obtainium, version 5.15

**Additional context**
Add any other context about the problem here.

Start by reproducing the issue in the mobile app's Swap flow on Android: search for SATS (Lightning Chain) and compare the results with the reported screenshot. Done means SATS from the Lightning Chain is recognized in Swap and can be exchanged into BTC.

Written by the indexing model from the issue text.