deposit funds into a prediction

<img width="431" height="329" alt="Image" src="https://github.com/user-attachments/assets/54d1db17-ee70-4137-9adc-5955b21588d0" />

allow users to deposit funds into any prediction they want, open thier wallet, sign the signature and put thier funds into the pool
a yield % is shown and they can see thier position live