Vue 3 Composition API Converter

I need to convert my Vue component from Options API to Composition API.

**Original Vue 2 Component:**
```vue
<template>
[paste your template]
</template>

<script>
export default {
  [paste your options API code]
}
</script>
```

**Requirements:**
- Add TypeScript: [yes/no]
- Use <script setup>: [yes/no]
- Composables to extract: [list any reusable logic]

**Additional Context:**
[Any Vuex store interactions, mixins, or special considerations]

Please convert this to Composition API with:
1. Full converted component code
2. Explanation of each conversion decision
3. TypeScript interfaces if applicable
4. Extracted composables if beneficial
5. Performance improvements identified