Raw time-series data points from TowerWatch network monitoring.

Pick this when you need the actual numbers — specific values, series, timestamps — and you will do your own reasoning over them. If you want a judgment about a window (is it degraded, and against what reference), use analyze_window instead.

Returns downsampled [timestamp, value] pairs per metric, plus data_status. Read data_status before the numbers: 'empty_window' means collected here with nothing in range (a true negative), while 'not_collected' means this site never collects it — no evidence, so do not infer that anything is healthy.