Token Symbol/Decimals for `/svm/swaps`

We don't have any Token Symbol/Decimals for `/svm/swaps`

`input_token` & `output_token` doesn't show up

<img width="1250" height="864" alt="Image" src="https://github.com/user-attachments/assets/ee0cba02-3bd0-4ecb-b93e-fe923dbdde09" />

compared to EVM swaps

<img width="1206" height="746" alt="Image" src="https://github.com/user-attachments/assets/8d2a7c23-4c4d-4fb1-b389-c5f338fcce32" />