Drop the workflow: a public repo cannot call a private one's workflow

Drop the workflow: a public repo cannot call a private one's workflow The shared checks live in a private repository, and a public repository is never granted read access to one, at any actions/permissions/access level. The reference cannot be resolved, so the whole file is rejected before any job starts — the run had no jobs and the annotation read "workflow was not found", which is what GitHub says when the answer is really "not allowed to see it". The documentation changes stand on their own and are what this branch is for. Enforcement waits until the checks are reachable from a public repository. Co-Authored-By: Claude Opus 5 (1M context) Claude-Session: https://claude.ai/code/session_01XmzqahsmAXBn5wJab92jP2