bug(docs): pyproject.toml disables the 'twisted' pytest plugin via addopts (-p no:twisted), but the PR description/README state the suite uses pytest-twisted. If pytest-twisted is intended, remove this disable; if not, drop pytest-twisted from dev deps and update docs accordingly to avoid confusion.

[ncouture]

pyproject.toml disables the 'twisted' pytest plugin via addopts (-p no:twisted), but the PR description/README state the suite uses pytest-twisted. If pytest-twisted is intended, remove this disable; if not, drop pytest-twisted from dev deps and update docs accordingly to avoid confusion.

Originally posted by @Copilot in #34 (comment)