DByteOS Config

The config command prints deterministic read-only preferences for DByteOS Alpha.
It is a foundation for central system values, not a mutable settings store.

Usage:
  config
  config show
  config keys
  config get <key>

Keys:
  system.mode
  system.prompt
  user.name
  user.home
  ui.theme
  security.mode

Notes:
  Values are loaded from committed DByte scripts.
  config does not write files or persist changes.
  system.prompt is applied to the DByteOS shell when .dbyterc is loaded.
