Share notebook traversal with the diagnostic reader. Preserve stale TOC references, encrypted sections and unreadable graph state without treating them as empty content. Storage inspection retains reader coordination while edit validation stays strict.

Validated native hierarchies including the copied personal notebook, local/SMB catalog parity, rename and duplicate identity cases, report/editor regressions, live reader coordination, and Apple device/simulator linking.

Assisted-by: gpt-6-astra