MOB-14: PerformanceChart and ComparisonChart both already configure
legend position 'top' — no change needed.
MOB-15: Compare's detailedTable is 774px wide inside an overflow-x:
auto wrapper. Add a right-edge mask-image fade at ≤640px so phone
users see the table extends past the viewport.
MOB-16: ComparisonView's Share button previously did clipboard-only.
Prefer navigator.share when available (iOS/Android native sheet) so
users can send straight to Messages / WhatsApp / Mail / etc. Fall
back to clipboard with the existing "Copied!" toast otherwise. User
cancellations swallow silently; only real errors trigger fallback.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Tudor Sitaru
56ab1368b1