export function log(level: 'info' | 'warn' | 'error', event: string, fields: Record<string, unknown> = {}) {
  const safe = Object.fromEntries(Object.entries(fields).filter(([key]) =>
    !/authorization|token|secret|password|database_url/i.test(key),
  ))
  process.stdout.write(`${JSON.stringify({
    time: new Date().toISOString(),
    level,
    event,
    ...safe,
  })}\n`)
}