The first exact documentation run found two fixture-selection failures: the Nodes and Config section also contains export/import JSON. Read only the existing Add Node subsection for its single configuration specimen; retain all transport, trust and original-document controls.
Contract-Neutral: Documentation recipe test extraction only; no product runtime, subsystem contract or guide content change.
Change-source: pulse-maintainer
Replace root-password and implicit-TLS examples with a private JSON-file recipe using the existing bounded helper. Distinguish live tests, persisted changes, platform credentials and uncertain results; exercise copied commands with synthetic success, denial, redirect and incomplete responses.
Contract-Neutral: Documentation, mirrored guidance and copied-recipe regression tests only; no runtime API, authentication, TLS or frontend contract changes.
Change-source: pulse-maintainer