initial: mirror of @fn_library from fn_registry

75 components + DESIGN_SYSTEM.md + sync script.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

components/slider.tsx

@@ -0,0 +1,16 @@
+import { Slider as MantineSlider, RangeSlider as MantineRangeSlider } from '@mantine/core'
+import type { SliderProps as MantineSliderProps, RangeSliderProps as MantineRangeSliderProps } from '@mantine/core'
+
+interface SliderProps extends MantineSliderProps {}
+interface RangeSliderProps extends MantineRangeSliderProps {}
+
+function Slider(props: SliderProps) {
+  return <MantineSlider {...props} />
+}
+
+function RangeSlider(props: RangeSliderProps) {
+  return <MantineRangeSlider {...props} />
+}
+
+export { Slider, RangeSlider }
+export type { SliderProps, RangeSliderProps }