I think this will be super useful to prevent something like this happening.
MakerDAO and AAVE both have some warning indicators that tell you when the loan amount is close to liquidation and also the liquidation price. The liquidation price would be “the price at which your liquidation can be triggered” (i.e. loan amount * 2 / number of bluna posted). The actual fill price would depend on the bids. And also, I think it should be noted that the liquidation price goes up as the loan accrues interest.