Rename hourly activity definitions to daily stabilize phase (DEC-005)

Crons were already daily; align file names, ids (coulomb-daily-*), rule labels,
and cross-references. Old hourly definitions disabled on activity-core sync.
Kept hourly-ci-health-escalation as bootstrap-only (disabled).

activity-definitions/daily-metrics-optimize.md

@@ -0,0 +1,41 @@
+---
+id: coulomb-daily-metrics-optimize
+name: Daily Kaizen Metrics Optimization (coulomb-loop stabilize)
+enabled: true
+owner: coulomb-loop
+governance: coulomb_social
+status: proposed
+trigger:
+  type: cron
+  cron_expression: "0 8 * * *"
+  timezone: Europe/Berlin
+  misfire_policy: skip
+context_sources:
+  - type: kaizen
+    query: discover_kaizen_projects
+    params:
+      marker: .kaizen/metrics
+      roster: /home/worsch/coulomb-loop/loops/kaizen-stack/roster.yaml
+    bind_to: context.projects
+---
+
+# Daily Kaizen Metrics Optimization
+
+Stabilize phase per DEC-005. Pilot roster only (DEC-001 option A). Cron `0 8 * * *`.
+
+```rule
+id: run-daily-optimizer
+for_each: context.projects
+bind_as: p
+condition: 'context.p.has_metrics and context.p.in_pilot_roster'
+action:
+  task_template: "Run kaizen metrics optimize on {context.p.repo}"
+  description: |
+    cd {context.p.root} && kaizen-agentic metrics optimize
+    Optional: kaizen-agentic metrics publish (when artifact-store configured)
+  target_repo: context.p.repo
+  priority: medium
+  labels: ["kaizen", "metrics", "optimizer", "coulomb-loop", "stabilize"]
+```
+
+**Supplier reference:** `kaizen-agentic/docs/integrations/activity-definitions/weekly-metrics-optimize.md`