v0.4.0

v0.4.0

The agent-facing read path: the UModel Agent Skills and a one-command demo that reads real
telemetry, plus a plan-contract change so the caller executes query plans directly.

Features

• Agent Skills — umodel-query reads the object graph and telemetry by turning get_metrics
  / get_logs into executable plans, with progressive-disclosure references/ (#51).
• Quickstart demo stack — examples/quickstart-multidomain/deploy/ brings up UModel plus a
  seeded Prometheus and Elasticsearch with one command (start.sh / stop.sh), so the pack's
  plans run end to end (#54, #55). The quickstart pack is reorganized into umodel/ (schema) and
  deploy/ (stack).

Changes

• Plan next_action is now execute_query (was forward_to_executor): unified-model returns a
  plan and the caller — an agent or any client — executes the inner query against storage. The
  plan descriptions are reworded to match.
• fix(graphstore): the in-memory provider capped query results at 100; raised to 10000 so
  larger reads are not truncated (#56).
• fix(docker): copy go.sum so the server image builds (#53).

Docs

• Rebuilt the multi-domain quickstart walkthrough (#52); removed CMS 2.0 references from the
  front-page READMEs.

Full changelog: v0.3.0...v0.4.0