Function migrateConfigFields

src/utils/config.ts:986–1034

* Migrates old autoUpdaterStatus to new installMethod and autoUpdates fields * @internal

(config: GlobalConfig)

 * @internal
 */
function migrateConfigFields(config: GlobalConfig): GlobalConfig {
  // Already migrated
  if (config.installMethod !== undefined) {
    return config
  }

  // autoUpdaterStatus is removed from the type but may exist in old configs
  const legacy = config as GlobalConfig & {
    autoUpdaterStatus?:
      | 'migrated'
      | 'installed'
      | 'disabled'
      | 'enabled'
      | 'no_permissions'
      | 'not_configured'
  }

  // Determine install method and auto-update preference from old field
  let installMethod: InstallMethod = 'unknown'
  let autoUpdates = config.autoUpdates ?? true // Default to enabled unless explicitly disabled

  switch (legacy.autoUpdaterStatus) {
    case 'migrated':
      installMethod = 'local'
      break
    case 'installed':
      installMethod = 'native'
      break
    case 'disabled':
      // When disabled, we don't know the install method
      autoUpdates = false
      break
    case 'enabled':
    case 'no_permissions':
    case 'not_configured':
      // These imply global installation
      installMethod = 'global'
      break
    case undefined:
      // No old status, keep defaults
      break
  }

  return {
    ...config,
    installMethod,
    autoUpdates,
  }
}

/**
 * Removes history field from projects (migrated to history.jsonl)