# 3.7 — Live sync animation (GREEN)

Phase: 3 — Delivery Tree (Surface E)
Stage: GREEN

Depends on: [2.5](2.5-api-stream.md), [3.6](3.6-frontend-wave-columns.md)

- [ ] Live sync animation `OutOfSync -> Syncing -> Synced` driven by Application watch (reuse Phase 2 SSE `/api/stream`, add `delivery` event type)

## Verify

```bash
# trigger an Argo sync, observe wave-ordered animation
argocd app sync homelab-root
```