v0.18.0

Added

• Stable compiled-stage-graph export contracts and millrace compile graph for inspecting legal runtime topology by plane.
• Per-run run_trace.json artifacts plus millrace runs trace <run_id> for graph-shaped run history, router decisions, artifacts, and spawned work.
• Fallback run-trace inspection for older run directories that only have stage-result artifacts.
• Read-only millrace-web compiled graph and run-trace API routes with Flow view trace outcome overlays.
• Repo-local millrace-autonomous-delegation external-agent skill for trusted sessions.

Changed

• Refocused millrace-ops-agent-manual as the procedural runbook for CLI operation, daemon monitoring, workspace validation, and safe intervention.