createDrawable = (selector, start = 0, end = 0) => {
  const els = parseTargets(selector);
  return els.map($el => createDrawableProxy(
    /** @type {SVGGeometryElement} */($el),
    start,
    end
  ));
}
Creates drawable proxies for multiple SVG elements.
@param {TargetsParam} selector - CSS selector, SVG element, or array of elements and selectors
@param {number} [start=0] - Starting position (0-1)
@param {number} [end=0] - Ending position (0-1)
@return {Array<DrawableSVGGeometry>} - Array of proxied elements with drawing functionality