Change trading rewards as follows:
- for each stable coin trade, earn 0.0001 HFT per USD traded
- for each non-stable coin trade, earn 0.0005 HFT per USD traded
Set a ceiling of 350K HFT per month, broken down by trade type:
- 225K HFT for non-stablecoin trades
- 125K HFT for stablecoin trades