Monitor Items — Transient Trends

Time-series telemetry stripped straight out of the dynamic solver — pressure, flow, or composition profiles over time — plotted live via the one hand-rolled SVG chart primitive every plot in the app shares (no charting dependency).

The same primitive renders multi-series polylines with optional markers and a y=x diagonal reference where relevant (e.g. reconciled-vs-raw parity), so a trend chart and a parity chart are the same component with different data, not two implementations.