v2.1.0

Added

• A tool group, MCP server or connector can be set to attach: "search": its schemas leave every
  prompt and the model loads them itself by calling the new tool_search tool, with one shared
  pointer in place of a per-item advertised line. mention stays the user-driven deferral; both
  respect the acting agent's ceiling, which neither can widen past.

Fixed

• A tag no longer publishes to PyPI or GHCR before the Test Suite has finished on that commit.
  v2.0.0 shipped a wheel that could not be imported on the minimum supported Python because the
  publish jobs are quicker than the tests and nothing connected them.
  (#270)

Changed

• CI builds the image with Buildx and the Actions cache, the way the publish workflow already
  did. (#271)