fix(20): WR-03 IN-03 phone sheet maxHeight scroll and safe-area padding

Add maxHeight:90dvh + overflowY:auto to the phone bottom-sheet branch
so content overflowing a short viewport (iPhone SE 667px) is scrollable
rather than clipped and the Save buttons remain reachable.

Add paddingBottom with env(safe-area-inset-bottom) to clear the iOS home
indicator / Android gesture navigation bar (IN-03).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/pwa/src/components/MemberEditorSheet.tsx

@@ -398,10 +398,17 @@ export function MemberEditorSheet({
         bottom: 0,
         left: 0,
         right: 0,
+        // WR-03: cap height so content does not spill off screen on short phones
+        // (iPhone SE 667px with three sections visible). overflowY:'auto' enables
+        // scroll when content exceeds maxHeight.
+        maxHeight: '90dvh',
+        overflowY: 'auto',
         background: 'var(--color-surface)',
         borderRadius: '12px 12px 0 0',
         boxShadow: '0 -4px 24px rgba(0,0,0,0.15)',
         padding: 'var(--space-6, 24px)',
+        // IN-03: pad the bottom to clear iOS home indicator / Android gesture bar
+        paddingBottom: 'calc(var(--space-6, 24px) + env(safe-area-inset-bottom, 0px))',
         zIndex: 301,
         fontFamily: 'var(--font-family-base)',
       }