Feature request: Add samples parameter to customize plot sampling rate.

[FramHerel]

Is your feature request related to a problem? Please describe.

Currently, there is no option to customize the sampling resolution (number of samples) when generating function plots. When plotting rapidly oscillating functions, high-frequency curves, or functions across a wide domain, the default sampling resolution may lead to visible aliasing or jagged lines due to insufficient points.

Describe the solution you'd like

Expose the underlying cetz-plot parameter samples in simple-plot functions.

This parameter should accept an integer (e.g., samples: 200) to define how many points are evaluated across the plot range.

Example Usage

#import "@preview/simple-plot:1.0.0":plot
#import "@preview/cetz-plot:0.1.4"
#import "@preview/cetz:0.5.2"
#plot(
  xmin:-5,
  xmax:5,
  (fn:x => calc.sin(x * 10)),
)

#cetz.canvas({
  import cetz.draw: *
  import cetz-plot: *
  plot.plot(
    size: (6, 6),
    axis-style: "school-book",
    x-min:-5,
    x-max:5,
    y-min:-5,
    y-max:5,
    {
      plot.add(
      domain: (-5, 5),
      samples: 2000,
      style: (stroke: blue + 1.2pt),
      x => calc.sin(x * 10),
      )
    },)
})

Additional Context

Allowing direct control over samples improves flexibility for users who need higher resolution for dense plots, or lower resolution to speed up document rendering when precision is non-critical.