add accordion components

src/components/ui/accordion/Accordion.vue

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+<script setup lang="ts">
+import {
+  AccordionRoot,
+  type AccordionRootEmits,
+  type AccordionRootProps,
+  useForwardPropsEmits,
+} from 'radix-vue'
+
+const props = defineProps<AccordionRootProps>()
+const emits = defineEmits<AccordionRootEmits>()
+
+const forwarded = useForwardPropsEmits(props, emits)
+</script>
+
+<template>
+  <AccordionRoot v-bind="forwarded">
+    <slot />
+  </AccordionRoot>
+</template>

src/components/ui/accordion/AccordionContent.vue

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+<script setup lang="ts">
+import { cn } from '@/lib/utils'
+import { AccordionContent, type AccordionContentProps } from 'radix-vue'
+import { computed, type HTMLAttributes } from 'vue'
+
+const props = defineProps<AccordionContentProps & { class?: HTMLAttributes['class'] }>()
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props
+
+  return delegated
+})
+</script>
+
+<template>
+  <AccordionContent
+    v-bind="delegatedProps"
+    class="overflow-hidden text-sm transition-all data-[state=closed]:animate-accordion-up data-[state=open]:animate-accordion-down"
+  >
+    <div :class="cn('pb-4 pt-0', props.class)">
+      <slot />
+    </div>
+  </AccordionContent>
+</template>

src/components/ui/accordion/AccordionItem.vue

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+<script setup lang="ts">
+import { cn } from '@/lib/utils'
+import { AccordionItem, type AccordionItemProps, useForwardProps } from 'radix-vue'
+import { computed, type HTMLAttributes } from 'vue'
+
+const props = defineProps<AccordionItemProps & { class?: HTMLAttributes['class'] }>()
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props
+
+  return delegated
+})
+
+const forwardedProps = useForwardProps(delegatedProps)
+</script>
+
+<template>
+  <AccordionItem
+    v-bind="forwardedProps"
+    :class="cn('border-b', props.class)"
+  >
+    <slot />
+  </AccordionItem>
+</template>

src/components/ui/accordion/AccordionTrigger.vue

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+<script setup lang="ts">
+import { cn } from '@/lib/utils'
+import { ChevronDown } from 'lucide-vue-next'
+import {
+  AccordionHeader,
+  AccordionTrigger,
+  type AccordionTriggerProps,
+} from 'radix-vue'
+import { computed, type HTMLAttributes } from 'vue'
+
+const props = defineProps<AccordionTriggerProps & { class?: HTMLAttributes['class'] }>()
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props
+
+  return delegated
+})
+</script>
+
+<template>
+  <AccordionHeader class="flex">
+    <AccordionTrigger
+      v-bind="delegatedProps"
+      :class="
+        cn(
+          'flex flex-1 items-center justify-between py-4 font-medium transition-all hover:underline [&[data-state=open]>svg]:rotate-180',
+          props.class,
+        )
+      "
+    >
+      <slot />
+      <slot name="icon">
+        <ChevronDown
+          class="h-4 w-4 shrink-0 transition-transform duration-200"
+        />
+      </slot>
+    </AccordionTrigger>
+  </AccordionHeader>
+</template>

src/components/ui/accordion/index.ts

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+export { default as Accordion } from './Accordion.vue'
+export { default as AccordionContent } from './AccordionContent.vue'
+export { default as AccordionItem } from './AccordionItem.vue'
+export { default as AccordionTrigger } from './AccordionTrigger.vue'