feat: advance LOOP-WP-0002/0003/0004 without activity-core blockers

Document event payload contract, draft disabled ActivityDefinitions for
CI/regulator/registry hygiene, initialize loop health snapshots and
regulator dashboard, record DEC-005 kaizen-stack promotion, and close
supplier-independent workplan tasks.

loops/regulator/session-template.md

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+# Regulator session template (optimization agent)
+
+LOOP-WP-0004 T04 — run after health collector or manual bootstrap-log review.
+
+## Prepare bundle
+
+```bash
+# From coulomb-loop (contracts only — optimization agent runs in target repo)
+kaizen-agentic schedule prepare optimization --target /home/worsch/kaizen-agentic
+```
+
+Include in session context (attach or paste):
+
+- `loops/regulator/dashboard.md`
+- Tail of each `loops/*/health.jsonl` (last 10 lines)
+- Each `loops/*/cadence.yml`
+- `loops/kaizen-stack/bootstrap-log.md` (manual_rescues)
+- `loops/kaizen-stack/supplier-notes.md`
+
+## Session outputs
+
+1. **Per loop:** promote / hold / demote recommendation with evidence
+2. **Noise:** definitions or crons to disable or throttle
+3. **Supplier friction:** items for `supplier-notes.md`
+4. **Proposals:** updated `cadence.yml` drafts (human commits — no autonomous cron changes)
+
+## Session close
+
+```bash
+kaizen-agentic metrics record optimization --success --time <s> --quality <0-1> \
+  --target /home/worsch/kaizen-agentic
+```
+
+Record decision in state-hub when promotion/demotion approved.
+
+## Promotion checklist (all must hold)
+
+- Bootstrap exit from source workplan met
+- `false_positive_rate < 0.2` over last 7 cycles
+- `manual_rescues == 0` over last 3 cycles
+- Regulator recommends promote
+
+See `loops/regulator/state-machine.md`.