Add automatic tab centering to TabsScroller

- Clicked tabs now scroll to center of container automatically
- Behavior works on all pages using TabsScroller
- Removed duplicate scroll logic from Features.tsx

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/components/TabsScroller.tsx

@@ -168,8 +168,22 @@ const TabsScroller = forwardRef<HTMLDivElement, TabsScrollerProps>(
                 }, 150);
             };
             const handleScrollEnd = () => updateOverflow();
+
+            // Scroll clicked tab to center
+            const handleTabClick = (event: Event) => {
+                const target = event.target as HTMLElement;
+                const tabButton = target.closest('.page-tab-btn, .admin-tab-btn') as HTMLElement;
+                if (!tabButton) return;
+                const nodeWidth = node.clientWidth;
+                const buttonLeft = tabButton.offsetLeft;
+                const buttonWidth = tabButton.offsetWidth;
+                const scrollLeft = buttonLeft - (nodeWidth / 2) + (buttonWidth / 2);
+                node.scrollTo({ left: Math.max(0, scrollLeft), behavior: 'smooth' });
+            };
+
             node.addEventListener('scroll', handleScroll, { passive: true });
             node.addEventListener('scrollend', handleScrollEnd, { passive: true });
+            node.addEventListener('click', handleTabClick);
             let resizeObserver: ResizeObserver | null = null;
             if (typeof ResizeObserver !== 'undefined') {
                 resizeObserver = new ResizeObserver(() => scheduleOverflowUpdate());
@@ -189,6 +203,7 @@ const TabsScroller = forwardRef<HTMLDivElement, TabsScrollerProps>(
             return () => {
                 node.removeEventListener('scroll', handleScroll);
                 node.removeEventListener('scrollend', handleScrollEnd);
+                node.removeEventListener('click', handleTabClick);
                 if (scrollEndTimeoutRef.current) {
                     clearTimeout(scrollEndTimeoutRef.current);
                 }

frontend/src/pages/admin/Features.tsx

@@ -51,7 +51,6 @@ export default function Features() {
     const [localOrder, setLocalOrder] = useState<string[]>([]);
     const [localPositions, setLocalPositions] = useState<Record<string, 'top' | 'bottom'>>({});
     const [hasOrderChanges, setHasOrderChanges] = useState(false);
-    const tabsContainerRef = useRef<HTMLDivElement>(null);
     const isUserEditing = useRef(false); // Track if user is actively editing
     const initialOrderRef = useRef<string[]>([]);
     const initialPositionsRef = useRef<Record<string, 'top' | 'bottom'>>({});
@@ -155,27 +154,10 @@ export default function Features() {
         localPositionsRef.current = localPositions;
     }, [localPositions]);
 
-    // Scroll active tab to center of container
-    const scrollActiveTabIntoView = useCallback((tabId: string) => {
-        if (tabsContainerRef.current) {
-            const container = tabsContainerRef.current;
-            const activeButton = container.querySelector(`[data-tab-id="${tabId}"]`) as HTMLElement;
-            if (activeButton) {
-                const containerWidth = container.clientWidth;
-                const buttonLeft = activeButton.offsetLeft;
-                const buttonWidth = activeButton.offsetWidth;
-                // Calculate scroll position to center the button
-                const scrollLeft = buttonLeft - (containerWidth / 2) + (buttonWidth / 2);
-                container.scrollTo({ left: Math.max(0, scrollLeft), behavior: 'smooth' });
-            }
-        }
-    }, []);
-
-    // Handle tab change with scroll
+    // Handle tab change (centering is handled by TabsScroller)
     const handleTabChange = useCallback((tabId: TabId) => {
         setActiveTab(tabId);
-        setTimeout(() => scrollActiveTabIntoView(tabId), 50);
-    }, [scrollActiveTabIntoView]);
+    }, []);
     // Keep saveRef updated with latest function
     useEffect(() => {
         saveRef.current = saveModulesToBackend;
@@ -787,7 +769,7 @@ export default function Features() {
                 onMenuClick={toggleMobileMenu}
             />
             <div className="page-tabs-container">
-                <TabsScroller className="page-tabs-slider" ref={tabsContainerRef} showArrows>
+                <TabsScroller className="page-tabs-slider" showArrows>
                     <div className="page-title-section">
                         <span className="page-title-text">{t.featuresPage.title}</span>
                     </div>