512f988dd0
18 integration tests validating all 7 Phase 2 checkpoint criteria: 1. Order query routes to order_lookup agent 2. Multi-intent classification with routing hint injection 3. Ambiguous message triggers clarification prompt 4. 30-min interrupt TTL auto-cancel with retry prompt 5. Webhook POST escalation with retry on failure 6. E-commerce template loads 4 correctly configured agents 7. Coverage at 92.60% (188 tests total)