FORT-0005: Grant the Fortress treasury the ability to perform buybacks

The Fortress team proposes to allow the usage of treasury funds to perform buybacks of the FORT token on the open market.

Buybacks can induce additional bonding to grow the treasury, recouping the cost of the buyback and increasing RFV backing per FORT.

The Fortress team does not believe that committing to specific buyback times, dates, or strategies is wise. Doing so exposes the Fortress to the risk of being frontrun. The Fortress DAO team will therefore perform buybacks at its discretion. Completed buybacks will be announced within 24 hours.

If this proposal passes, it does not obligate the Fortress team to engage in any buybacks and should not be interpreted as a signal that a buyback will occur at any point in time.