Document v1.8.0: export_host_file/artifactEgress, setup(ref) auth, widget-only review diffs
- Configuration: add artifactEgress section + JSON; conversationAuthToken now
64-hex with setup(ref) wire naming and an upgrade note; review.maxPatchBytes 4 MiB.
- Connecting to ChatGPT: setup(ref) gate + one-line instruction, 64-hex token.
- Security Model: bounded native-file egress subsection; per-conversation
authorization reworded to setup(ref)/64-hex/constant-time.
- Tools Reference: add export_host_file row, count 28/30, show_changes _meta,
structured-output list.
- Review Checkpoints: component-only _meta payload, 4 MiB budget, versioned v2
resource URI, compact persistent widget.