Generated multi-screen documents never carried screen markers or onTap
navigation, so preview always degraded to a single scrolling page. Add
the deterministic wire_screen_navigation cleanup pass (marks
screen-shaped top-level frames, binds nav tabs and header back buttons
as string-literal expression bodies, idempotent and additive-only),
teach the same contract to models in the design-agent and interactivity
skills (fixing the bare-path push syntax the skill used to teach, which
never compiled), echo unbound matching tabs per batch as navIssues, and
verify the insert program path passes screen/events through unfiltered.
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