feat(package): add section toggle

app/components/PackageSection.vue

@@ -0,0 +1,49 @@
+<script setup lang="ts">
+defineProps<{
+  title: string
+  toggleable?: boolean
+  isVisible?: boolean
+  scrollToId?: string
+}>()
+
+const isVisible = defineModel('isVisible', {
+  default: true,
+})
+
+function toggleVisibility() {
+  isVisible.value = !isVisible.value
+}
+</script>
+
+<template>
+  <section class="overflow-hidden scroll-mt-20">
+    <header class="group flex items-center justify-between gap-2 mb-3">
+      <h2 class="group text-xs text-fg-subtle uppercase tracking-wider">
+        <a
+          v-if="scrollToId"
+          :href="`#${scrollToId}`"
+          class="inline-flex items-center gap-1.5 text-fg-subtle hover:text-fg-muted transition-colors duration-200 no-underline"
+        >
+          {{ title }}
+          <span
+            class="i-carbon-link w-3 h-3 block opacity-0 group-hover:opacity-100 transition-opacity duration-200"
+            aria-hidden="true"
+          />
+        </a>
+        <template v-else>{{ title }}</template>
+      </h2>
+
+      <button
+        v-if="toggleable"
+        @click="toggleVisibility"
+        class="text-xs text-fg-subtle hover:text-fg opacity-0 group-hover:opacity-100 transition-opacity duration-200"
+      >
+        {{ isVisible ? 'hide' : 'show' }}
+      </button>
+    </header>
+
+    <div v-if="isVisible" class="space-y-0.5 min-w-0">
+      <slot />
+    </div>
+  </section>
+</template>