Apple-Health-style polish lands across all dashboard chart wrappers
in v1.4.16: gradient fills, 90-day personal baseline, rich tooltips
with delta-vs-baseline, 600 ms first-render animation respecting
prefers-reduced-motion, sparse-data empty state. Mood chart picks
up emoji glyphs at every data point; medication chart picks up the
gradient + rich tooltip on top of A6's existing target/threshold
reference lines.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>