Convert one or many GitHub repository, pull request, issue, discussion, commit, or code URLs into structured LLM_wiki GitHub raw-corpus Markdown. Use when the user invokes $github-clippings-vp, provides GitHub URL batches, asks to save GitHub material into 01.raw/10.GitHub, build GitHub source cards, organize repo/PR/issue URLs, or create engineering-case notes for later LLM/code-agent reference.
