Crypto Payment Method Limited to ABT Only

Description: When selecting Crypto as the payment method in AIGNE Hub, the currency dropdown exclusively shows ABT (Native ABT) as the only available option (displayed twice due to duplication). Users expect to see major cryptocurrencies such as BTC, ETH, USDC, USDT, or other widely-supported tokens for payment.
Steps to Reproduce:
- Open AIGNE Hub → Get AIGNE Hub Credits
- Select 1 Credit (or any amount)
- Tap Payment Details → Select Crypto tab
- Open the Currency dropdown
Expected Result: Dropdown should display a variety of supported cryptocurrencies including but not limited to:
- BTC (Bitcoin)
- ETH (Ethereum)
- USDC / USDT (Stablecoins)
- Potentially other supported tokens
Actual Result:
- Only ABT (Native ABT) appears in the list
- The single option appears duplicated (shown twice)
- No other crypto payment options are visible or selectable