v0.15.0

Highlights

• Adds the learning plane with Analyst, Professor, and Curator stages.
• Adds learning-enabled modes, loop/graph assets, stage kinds, entrypoints, and stage-core skills.
• Adds millrace skills CLI commands for install, create, improve, promote, export, list, show, and search workflows.
• Wires learning queue/status/snapshot handling, graph routing, runner normalization, and skill revision evidence.

Verification

• uv run pytest -q
• uv run --with ruff ruff check src/millrace_ai tests
• uv run --with mypy mypy src/millrace_ai
• uv build
• uv run --with twine twine check dist/*