More gracefully fail on `pyproject.toml` error

tried going through the "create environment..." flow with a pyproject.toml file but I had an error since my pyproject.toml file was incorrectly formatted. Would be good if the error message was better or it failed more gracefully

 Resolved Python Environment /Users/eleanorboyd/python-envs-scenarios/existing-env-folder/.venv/bin/python
2025-05-14 09:19:39.308 [info] Running: uv pip install --python /Users/eleanorboyd/python-envs-scenarios/existing-env-folder/.venv/bin/python -e /Users/eleanorboyd/python-envs-scenarios/existing-env-folder
2025-05-14 09:19:39.378 [info] error: Failed to extract static metadata from `pyproject.toml`
  Caused by: TOML parse error at line 6, column 8
  |
6 | name = "existing env folder"
  |        ^^^^^^^^^^^^^^^^^^^^^
Not a valid package or extra name: "existing env folder". Names must start and end with a letter or digit and may only contain -, _, ., and alphanumeric characters.

Bắt đầu với flow "create environment..." và lời gọi uv pip install --python ... -e ... được ghi lại trong log, sử dụng ví dụ pyproject.toml bị malformed để tái hiện lỗi. Hoàn tất khi flow báo lỗi metadata của package rõ ràng hơn hoặc thoát một cách an toàn thay vì để lộ lỗi thô.