`{step.timerSeconds && (...)}` renders the literal 0 when timerSeconds is
the number 0 rather than null/undefined — only false/null/undefined skip
rendering in JSX, a bare falsy number doesn't. Some steps ended up with
timerSeconds stored as 0 instead of null (e.g. AI generation filling in a
"default" value for an optional field rather than omitting it), which
this guard then rendered as a bare "0" instead of hiding the timer.
Fixed at all 4 render sites (recipe page, cook mode, both print views) by
coercing to a real boolean (`!!step.timerSeconds`) — makes a stored 0
behave identically to null everywhere it's displayed.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Arnaud
5403a06348