human hand off

frontend/src/components/MailboxView.jsx

@@ -103,6 +103,7 @@ export default function MailboxView({
   account,
   lens = "all",
   agentNav = null,
+  initialThreadId = null,
   onLogout,
   onOpenSettings,
   onCompose,
@@ -163,6 +164,34 @@ export default function MailboxView({
     return () => window.clearTimeout(timeout);
   }, [load, refreshKey]);
 
+  useEffect(() => {
+    if (!initialThreadId) return undefined;
+    let cancelled = false;
+    setSelected(initialThreadId);
+    setDetailStatus({ loading: true, error: "", busy: false });
+    getThread(initialThreadId, token)
+      .then((thread) => {
+        if (cancelled) return;
+        const messages = thread.messages || [];
+        const latest = messages[messages.length - 1];
+        setThreadDetail(thread);
+        setDetail(latest || {
+          id: thread.latest_message_id,
+          thread_id: initialThreadId,
+          subject: thread.subject,
+          snippet: thread.snippet,
+        });
+        setDetailStatus({ loading: false, error: "", busy: false });
+      })
+      .catch((error) => {
+        if (cancelled) return;
+        setDetailStatus({ loading: false, error: error.message, busy: false });
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [initialThreadId, token]);
+
   useEffect(() => {
     function openPalette(event) {
       const target = event.target;