Scroll fix pt 2

web/src/App.tsx

@@ -320,12 +320,14 @@ export default function App() {
     return stored.openai ?? PROVIDER_FALLBACK_MODELS.openai[0];
   });
   const [error, setError] = useState<string | null>(null);
+  const transcriptContainerRef = useRef<HTMLDivElement>(null);
   const transcriptEndRef = useRef<HTMLDivElement>(null);
   const contextMenuRef = useRef<HTMLDivElement>(null);
   const selectedItemRef = useRef<SidebarSelection | null>(null);
   const pendingTitleGenerationRef = useRef<Set<string>>(new Set());
   const searchRunAbortRef = useRef<AbortController | null>(null);
   const searchRunCounterRef = useRef(0);
+  const shouldAutoScrollRef = useRef(true);
   const wasSendingRef = useRef(false);
   const [contextMenu, setContextMenu] = useState<ContextMenuState | null>(null);
   const [isMobileSidebarOpen, setIsMobileSidebarOpen] = useState(false);
@@ -506,6 +508,10 @@ export default function App() {
 
   const selectedKey = selectedItem ? `${selectedItem.kind}:${selectedItem.id}` : null;
 
+  useEffect(() => {
+    shouldAutoScrollRef.current = true;
+  }, [draftKind, selectedItem?.kind, selectedKey]);
+
   useEffect(() => {
     selectedItemRef.current = selectedItem;
   }, [selectedItem]);
@@ -534,6 +540,7 @@ export default function App() {
     const wasSending = wasSendingRef.current;
     wasSendingRef.current = isSending;
     if (wasSending && !isSending) return;
+    if (!shouldAutoScrollRef.current) return;
     transcriptEndRef.current?.scrollIntoView({ behavior: isSending ? "smooth" : "auto", block: "end" });
   }, [draftKind, selectedChat?.messages.length, isSending, selectedItem?.kind, selectedKey]);
 
@@ -1174,7 +1181,16 @@ export default function App() {
             </div>
           </header>
 
-          <div className={cn("flex-1 overflow-y-auto px-3 pt-6 md:px-10", isSearchMode ? "pb-6" : "pb-28 md:pb-40")}>
+          <div
+            ref={transcriptContainerRef}
+            className={cn("flex-1 overflow-y-auto px-3 pt-6 md:px-10", isSearchMode ? "pb-6" : "pb-28 md:pb-40")}
+            onScroll={() => {
+              const container = transcriptContainerRef.current;
+              if (!container) return;
+              const distanceFromBottom = container.scrollHeight - container.scrollTop - container.clientHeight;
+              shouldAutoScrollRef.current = distanceFromBottom < 96;
+            }}
+          >
             {!isSearchMode ? (
               <ChatMessagesPanel messages={displayMessages} isLoading={isLoadingSelection} isSending={isSendingActiveChat} />
             ) : (