Provider-call resilience — retry, fallback, and counterfactual loss accounting. Default off until resilience.enabled=true.
Not cloud sync retry — see Cloud Sync Resilience. Not BudgetGuard — see BudgetGuard.
Billed-but-failed spend, in-process library model, rollout path.
resilience config under AurexConfig.
Detect-only vs active retry with cost ceiling.
register_fallback with customer-owned clients.
retry_on failure kinds and overrides.
loss_avoided, projected_cost, dashboard metrics.