Moved auto-scroll control from ReaderTabView to MainTabView so it sits at the tab bar level, trailing side — matching the iOS Photos search icon placement. Idle: 48px glass circle with play icon (bottom-right, tab bar row) Playing: expands to capsule with [ - ] 1.00x [ + ] [ stop ] Spring animation between states. Grid/list toggle and ellipsis menu moved inline to the sub-tab header row (next to Unread/Starred/All) so they're always visible without needing a toolbar. ReaderTabView now receives isAutoScrolling and scrollSpeed as bindings from MainTabView. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>