X_DOC_PACKAGE_GRAPH_UNSCANNED
Means
the package map draws no graph this rule can read
Typical cause
the ```mermaid fence was renamed, the graph was deleted, or a line uses a mermaid link operator other than a --> b. Reported rather than skipped: a graph nobody could parse answers exactly what a correct graph answers
Fix
bun run package-map-graph --json — it names the line it could not read, or the fence it could not find