Charlie Marsh
763e2d2e84
## Summary We've debated this a bit but the thing that tipped me over the edge is https://github.com/astral-sh/uv/issues/4157. As-is, there's no way to represent "a package should be installed, but the extra should only be installed conditionally based on the markers", because the markers sit on the _distribution_. By placing the markers on the edge, we can now represent scenarios that weren't previously representable. Closes https://github.com/astral-sh/uv/issues/4137. Closes https://github.com/astral-sh/uv/issues/4125. Closes https://github.com/astral-sh/uv/issues/4157.