✨ feat: 验证实名认证功能

+import { ref } from 'vue'
+import axios from '@/utils/axios';
+import { Toast } from 'vant';
+
+export const idCard = () => {
+  /**
+   * 检查用户是否已实名认证 (实名认证后可以上传作品，留言)
+   */
+  const can_use = ref(false)
+    axios.get('/srv/?a=can_upload')
+      .then(res => {
+        if (res.data.code === 1) {
+          can_use.value = res.data.data.can_upload ? true : false;
+        } else {
+          console.warn(res);
+          Toast({
+            icon: 'close',
+            message: res.data.msg
+          });
+        }
+      })
+      .catch(err => {
+        console.error(err);
+      })
+
+      return {
+        can_use
+      }
+  }
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