Prepare or review a submission to google-deepmind/formal-conjectures (especially an Erdős problem file) against the project's house style. Use before opening the PR, or when reviewing one: checks statement faithfulness (the boxed question, not the answer), `answer()`, `.variants.*` for below-the-box results, LaTeX-not-backtick docstrings, AMS tags, and references verified against erdosproblems.com. Complements `lean-review` (general Lean hygiene); run both.
