Promote kaizen schedule to weekly cadence and add credential routing

- Switch coach and optimization agents from daily to weekly Monday crons
- Restore disabled tdd-workflow stanza; quote cron expressions
- Add credential routing guidance to AGENTS.md for Codex/Grok agents
- Wire credential-routing rule into CLAUDE.md for Claude Code sessions
- Scaffold kaizen agent memory files and record failed daily-triage run

memory/working/daily-triage-2026-06-18-96919365.md

@@ -0,0 +1,29 @@
+---
+type: working-memory
+source: activity-core
+activity_id: 6fca51fa-387a-4fd0-bc4e-d62c29eb859a
+activity_core_run_id: 96919365-c608-55c1-8aeb-d165d71c342d
+instruction_id: daily-triage-report
+scheduled_for: None
+output_validated: false
+review_required: true
+model: custodian-triage-balanced
+prompt_hash: 
+created: 2026-06-18T06:07:49.563454+00:00
+---
+
+# Daily State Hub WSJF Triage - 2026-06-18
+
+Instruction daily-triage-report could not run; operator review is required.
+
+Validation error:
+
+`LLM_CONNECT_URL is not configured`
+
+```json
+{
+  "status": "execution_failed",
+  "summary": "Instruction daily-triage-report could not run; operator review is required.",
+  "validation_error": "LLM_CONNECT_URL is not configured"
+}
+```