v0.2.0

[0.2.0] - 2026-10-02

Added

• Opt-in routes[].input.developer_role_as_user to wrap developer messages as
  tagged user messages at their original positions, with a fixed convention
  appended to top-level instructions. The setting defaults to false and does
  not affect native ChatGPT or OpenAI API requests.
• Coverage for message order, string and content-block preservation, stable
  translated prefixes, route isolation, and JSON/SSE tool-call round trips.

Breaking

• Removed routes[].input.developer_role_as_system. Delete this field from
  existing configurations before upgrading; validation rejects it. Enable
  developer_role_as_user where tagged-user conversion is needed. With the new
  setting disabled, developer messages and top-level instructions are preserved.