Changing the interval option on a live useAnimation was a no-op (it was captured
once at setup). interval now accepts a MaybeRefOrGetter<number> (strict superset of
number); while active, a change resets frame/time/delta to 0 and re-subscribes at
the new interval; while inactive the new value is recorded and applies on the next
activation. Mirrors Ink's shouldReset gating (use-animation.ts), which recomputes
safeInterval every render and resets only when active.
Adds 3 tests (live change while active resets; while inactive doesn't; plain number
still works).
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Yunfei He
4a5594ec22