const PRM_PREFIX = "/.well-known/oauth-protected-resource"; export const stripMcpOrgSegment = (pathname: string): string | null => {  if (pathname.startsWith(`${PRM_PREFIX}/`)) {    const rest = pathname      .slice(PRM_PREFIX.length + 1)      .split("/")      .filter((segment) => segment.length > 0);    return rest.length === 2 && rest[1] === "mcp" ? `${PRM_PREFIX}/mcp` : null;  }  const segments = pathname.split("/").filter((segment) => segment.length > 0);  return segments.length === 2 && segments[1] === "mcp" ? "/mcp" : null;};