Temporal & Animated Axes as Native Concept

You likely support time as a numeric axis, but consider:

* Time Axis With Playback Controls
* Native animation clock
* Frame interpolation in shaders
* Axis-driven animation

Concept:

```
axis: {
  type: "time",
  playback: true,
  loop: true
}
```

Combined with GPU filtering, this becomes extremely powerful for:
* Simulation playback
* Financial streams
* IoT dashboards