v0.15.9

v0.15.9

• Adds closure lineage drift diagnostics and the millrace queue repair-lineage recovery command.
• Blocks repeated Arbiter remediation loops when no execution progress occurs.
• Makes watcher idea IDs idempotent for idea-* filenames.
• Improves daemon monitor output readability and documents the updated operator surfaces.

Verification:

• uv run --extra dev python -m pytest -q -> 563 passed
• uv run --with ruff ruff check src/millrace_ai tests -> passed
• uv run --with mypy mypy src/millrace_ai -> passed
• uv build and twine check dist/* -> passed