Horus Gateway 0.6.8

Highlights

• Builds provider setup data from validated provider manifests, including explicit default models
  and concise provider names.
• Sources the gateway system prompt and custom-model context default from a validated TOML resource.
• Bundles horus 0.6.7.

Upgrade

• Gateway protocol 21, configuration version 12, checkpoint JSON version 5, and SQLite schema 4
  are unchanged.