refactor: 移除未使用的 defineEmits 导入

dashboard/src/components/shared/ExtensionCard.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { defineProps, defineEmits, ref, computed } from 'vue';
+import { ref, computed } from 'vue';
 
 const props = defineProps({
   extension: {