On Ethereum mainnet, what was the Uniswap v4 spot price of pool 0xf6e8088529094bc485561fa2a03e3d19c9a60f5d99a997e8fe16ab4ca2db277a (DAI/USDT, currency0/currency1) as the median over 13 evenly spaced blocks of the window (blocks 26127487 to 26127785, about 1.5 hours before 26128234), as currency1 per 1e18 raw currency0 in raw units?