fix(review round 1): daemon PAT-header auth, job pruning, session-split batches, streaming tars, seed cleanup, ping/pong, byte caps, branch switch, slug --, ctx cancel, Init:true, pagination, latest/before events; web newest-window history + load-older, offline busy gate, staleness guards, memo store, auth probe, scroll key, focus-visible, draft restore, poll dedup; 106+181 tests, coverage 96.2%/95.1%+

web/src/ChatStream.tsx

@@ -136,9 +136,20 @@ interface Props {
 	messages: ChatMessage[];
 	tools: Map<string, ToolState>;
 	busy: boolean;
+	/** an older page exists beyond the loaded window (B1) */
+	hasOlder: boolean;
+	loadingOlder: boolean;
+	onLoadOlder: () => void;
 }
 
-export default function ChatStream({ messages, tools, busy }: Props) {
+export default function ChatStream({
+	messages,
+	tools,
+	busy,
+	hasOlder,
+	loadingOlder,
+	onLoadOlder,
+}: Props) {
 	const scrollRef = useRef<HTMLDivElement | null>(null);
 	const pinnedRef = useRef<boolean>(true);
 
@@ -166,6 +177,19 @@ export default function ChatStream({ messages, tools, busy }: Props) {
 	return (
 		<div className="chat-scroll" ref={scrollRef} onScroll={onScroll}>
 			<div className="chat-inner">
+				{hasOlder && (
+					<div className="load-older">
+						<button
+							type="button"
+							className="btn-secondary"
+							aria-label="Load older messages"
+							disabled={loadingOlder}
+							onClick={onLoadOlder}
+						>
+							{loadingOlder ? "loading…" : "Load older"}
+						</button>
+					</div>
+				)}
 				{messages.map((m) => (
 					<Bubble key={m.key} msg={m} tools={tools} />
 				))}