v0.2.1

Documentation and one error-message fix. No API changes.

Fixed

• An unknown constructor argument now raises a useful error. A typo like
  TrueNASClient("wss://nas", passwrd="s3cret") fell through to hostctl's
  SystemHost.__init__ and raised TypeError: SystemHost.__init__() got an unexpected keyword argument 'passwrd' — accurate, but naming an internal
  class rather than the thing the caller got wrong. It now raises
  ValueError: unknown credential argument: 'passwrd' and lists the accepted
  configuration options. Found by testing the documented examples.

Documentation

• README rewritten for 0.2.0: it still advertised a pytruenas[host] extra
  that no longer exists, said "once published to PyPI", and used a venv layout
  the project no longer follows. Adds the transport table and a
  commands/files section.
• New Recipes guide —
  worked examples for connecting, querying, idempotent upserts, subscriptions,
  running commands, upload/download, several hosts at once, and provisioning
  SSH. Every example was run against a live TrueNAS 26.0.0-BETA.1 host.
• Filesystem guide expanded with real path examples and a table of which
  operations need SFTP (rename, symlink_to, readlink, resolve have no
  filesystem.* equivalent and raise rather than failing quietly).
• docs/index.md extras list corrected; both CI workflows dropped a stale
  host extra that pip had been silently warning about.

Full Changelog: v0.2.0...v0.2.1