Convert all store files from JavaScript to TypeScript

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/Discover/Conformance/ConformanceSidebar/ConformanceRadioGroup.vue

@@ -52,7 +52,7 @@
 </template>
 <script>
 import { storeToRefs } from 'pinia';
-import { useConformanceStore } from '@/stores/conformance.js';
+import { useConformanceStore } from '@/stores/conformance';
 
 export default {
   setup() {