Handle missing `project.name` field in `pyproject.toml`

**Motivation**
Similar to #299, we should handle this incorrect `pyproject.toml` config automatically. We could probably use `uv init --bare` with the pyproject.toml moved temporarily to a temp directory and then extract the name before adding it back into the original file, to get a consistent name.

**Summary of desired enhancement**
Handle this missing field automatically.
