feat(projects): 添加插件示例：剪贴板

src/views/plugin/copy/index.vue

@@ -0,0 +1,31 @@
+<script lang="ts" setup>
+import { ref } from 'vue';
+import { useClipboard } from '@vueuse/core';
+
+const source = ref('');
+const { copy, isSupported } = useClipboard();
+
+function handleCopy() {
+  if (!isSupported) {
+    window.$message?.error('您的浏览器不支持Clipboard API');
+    return;
+  }
+  if (!source.value) {
+    window.$message?.error('请输入要复制的内容');
+    return;
+  }
+  copy(source.value);
+  window.$message?.success(`复制成功：${source.value}`);
+}
+</script>
+
+<template>
+  <div class="h-full">
+    <NCard title="文本复制" :bordered="false" class="h-full rounded-8px shadow-sm">
+      <NInputGroup>
+        <NInput v-model:value="source" placeholder="请输入要复制的内容吧" />
+        <NButton type="primary" @click="handleCopy">复制</NButton>
+      </NInputGroup>
+    </NCard>
+  </div>
+</template>