Install kaizen coach and optimization agents for WP-0006 pilot

Enables schedule validate/prepare on the-custodian hub operator checkout.

Makefile

@@ -175,3 +175,17 @@ e2e:
 		$(E2E_KEY_FLAG) \
 		$(E2E_KEEP_FLAG) \
 		$(E2E_WS_FLAG)
+
+# Agent Management Targets
+agents-list:
+	@echo "Installed agents:"
+	@ls agents/ 2>/dev/null | grep agent- | sed 's/agent-//g' | sed 's/.md//g' \
+	|| echo "No agents installed"
+
+agents-update:
+	@echo "Updating agents..."
+	@kaizen-agentic update
+
+agents-validate:
+	@echo "Validating agents..."
+	@kaizen-agentic validate agents/