feat: complete LOOP-WP-0003 and LOOP-WP-0004

Registry hygiene: 3-round pilot bootstrap smoke, helix_forge rollout
expansion, daily cadence promotion (DEC-006). Loop regulator: daily
collector and weekly session cadence (DEC-007), rotation runbook (T09).

docs/decisions/DEC-007-regulator-cadence-promotion.md

@@ -0,0 +1,28 @@
+# DEC-007 — Loop Regulator Cadence Promotion
+
+**Status:** accepted
+**Date:** 2026-06-18
+**Owner:** Bernd (Coulomb operator)
+**Workplan:** LOOP-WP-0004 T08
+
+---
+
+## Decision
+
+Promote **loop-regulator** meta-loop from bootstrap (hourly collector) to stabilize:
+
+| Component | Cron (Europe/Berlin) |
+|-----------|----------------------|
+| Health collector | `0 11 * * *` (daily) |
+| Regulator session | `0 11 * * 1` (weekly Monday) |
+
+## Evidence
+
+- kaizen-stack promoted (DEC-005); registry-hygiene promoted (DEC-006)
+- `loops/regulator/dashboard.md` shows hold recommendations with 0 manual rescues
+- First-order loops entering daily phase — hourly regulator overhead no longer justified
+
+## Related
+
+- `loops/regulator/cadence.yml`
+- `activity-definitions/hourly-loop-health-collector.md`