bootstrap: fix rule syntax, enable metrics+coach definitions

Align coulomb ActivityDefinition rules with activity-core path syntax
(context.p.* / {context.p.*}). Enable hourly-metrics-optimize and
hourly-coach-orientation; record first E2E cycle in bootstrap-log.

activity-definitions/hourly-metrics-optimize.md

@@ -1,7 +1,7 @@
 ---
 id: coulomb-hourly-metrics-optimize
 name: Hourly Kaizen Metrics Optimization (coulomb-loop bootstrap)
-enabled: false
+enabled: true
 owner: coulomb-loop
 governance: coulomb_social
 status: proposed
@@ -28,13 +28,13 @@ Runs hourly during coulomb-loop bootstrap phase. Limited to pilot roster
 id: run-hourly-optimizer
 for_each: context.projects
 bind_as: p
-condition: 'p.has_metrics == true and p.in_pilot_roster == true'
+condition: 'context.p.has_metrics and context.p.in_pilot_roster'
 action:
-  task_template: "Run kaizen metrics optimize on {{p.repo}}"
+  task_template: "Run kaizen metrics optimize on {context.p.repo}"
   description: |
-    cd {{p.root}} && kaizen-agentic metrics optimize
+    cd {context.p.root} && kaizen-agentic metrics optimize
     Optional: kaizen-agentic metrics publish (when artifact-store configured)
-  target_repo: "{{p.repo}}"
+  target_repo: context.p.repo
   priority: medium
   labels: ["kaizen", "metrics", "optimizer", "coulomb-loop", "bootstrap"]
 ```