v0.15.3

[0.15.3] - 2026-04-26

0.15.3 adds an opt-in live terminal monitor for daemon operators without
changing the quiet default daemon behavior.

Added

• Added millrace run daemon --monitor basic for concise live lifecycle,
  status, stage, router, elapsed-time, and token-usage output.
• Added a runtime monitor event contract so daemon progress is emitted from the
  runtime path that owns lifecycle, status-marker, stage, and routing state.
• Added learning-plane and compiled concurrency-policy visibility to daemon
  monitor startup and stage output.

Changed

• Centralized daemon-owned status marker updates so live monitor events and
  persisted marker files stay aligned across execution, planning, and learning.
• Documented the explicit --monitor [none|basic] daemon option in the CLI
  reference, including the quiet default behavior.