SCP-223: Change the rFOX 5% Burn to a 5% FOX Buyback

SCP-223: Change the rFOX 5% Burn to a 5% FOX Buyback Summary Stop burning the rFOX 5% and instead buy FOX with it instead. Same 5% of revenue, same monthly cadence, same market impact on the buy side. The only difference is that the FOX ends up in the treasury as an asset instead of at a burn address.

Abstract Every month, when the rFOX revenue share runs, 5% of revenue goes toward FOX that gets burned. This proposal changes how that portion of the revs is used. At the same point in the monthly rFOX distribution cycle, we swap into FOX on the open market using ETH or another low slippage asset, and keep that FOX to go towards ongoing expenses and for DAO contribituros. Nothing changes for rFOX stakers, and nothing changes about how much revenue is set aside.

Motivation The DFC is watchin