Use the survey-writer skill to draft a short literature survey on digital twins from this project's synced corpus. This is a non-interactive run, so do not stop to ask me anything; my answers to the skill's questions are: slug is dt-survey (so the draft is content/drafts/dt-survey.md); the reader is a PhD committee reading the background chapter of a thesis on digital twins in manufacturing; it covers what a digital twin is, how the twin is kept synchronised with the physical asset, factory applications and interoperability standards; it does not cover machine-learning anomaly detection except where a source ties it to a twin; no collection, use the whole corpus; dialect en-GB; aim for about 800-1200 words. Follow the skill through to the end, including its self-check with draft gate, then render the draft to markdown and pdf with draft render.
