fix: add Tauri opener plugin for external URL handling and improve notification focus behavior

src/app/pages/client/ClientNonUIFeatures.tsx

@@ -90,13 +90,15 @@ function InviteNotifications() {
   const notify = useCallback(
     (count: number) => {
       const body = `You have ${count} new invitation request.`;
+      const invitesPath = getInboxInvitesPath();
       
       if (isTauri()) {
         sendNotification({
           title: 'Invitation',
           body,
+          path: invitesPath,
           onClick: () => {
-            if (!window.closed) navigate(getInboxInvitesPath());
+            if (!window.closed) navigate(invitesPath);
           },
         });
       } else {
@@ -108,7 +110,8 @@ function InviteNotifications() {
         });
 
         noti.onclick = () => {
-          if (!window.closed) navigate(getInboxInvitesPath());
+          window.focus();
+          if (!window.closed) navigate(invitesPath);
           noti.close();
         };
       }
@@ -207,6 +210,7 @@ function MessageNotifications() {
         });
 
         noti.onclick = () => {
+          window.focus();
           if (!window.closed) navigate(roomPath);
           noti.close();
           notifRef.current = undefined;