Function isLiteLog

src/utils/sessionStorage.ts:3120–3122

(log: LogOption)

 * Lite logs have messages: [] and sessionId set.
 */
export function isLiteLog(log: LogOption): boolean {
  return log.messages.length === 0 && log.sessionId !== undefined
}

/**
 * Loads full messages for a lite log by reading its JSONL file.