Progress Services

Progress is computed in one place and broadcast, so every screen shows the same numbers.

At a glance

One source for progress math.
Rounded sensibly; broadcast on meaningful change.
ETA estimation and reconciliation as truth.

Centralized math

Progress is calculated centrally and rounded (broadcasting only on meaningful change) to avoid noisy, inconsistent updates across screens.

ETA & reconciliation

ETAs come from observed throughput; reconciliation is the source of truth. What actually exists as validated artifacts wins over optimistic in-memory state.