feat: 会员中心 hgcloud 主题初始化 + drone 部署步骤

- 解压官方默认主题 default_yfMBA.tar.gz 到 clientarea/hgcloud/
- .gitignore 排除压缩包和临时解压目录
- drone 新增步骤: 同步 hgcloud 到 /clientarea/template/pc/

clientarea/hgcloud/components/shadowContent/shadowContent.js

@@ -0,0 +1,39 @@
+const shadowContent = {
+  template: /* html*/ `
+    <div ref="shadow"></div>
+    `,
+  props: {
+    content: {
+      type: String,
+      default: "",
+    },
+  },
+  data() {
+    return {
+      shadowRoot: null,
+    };
+  },
+  mounted() {
+    this.shadowRoot = this.$refs.shadow.attachShadow({mode: "open"});
+    this.renderShadow();
+  },
+  // 内容变动时更新 Shadow DOM
+  watch: {
+    content() {
+      this.renderShadow();
+    },
+  },
+  methods: {
+    renderShadow() {
+      this.shadowRoot.innerHTML = `
+        <style>
+          img {
+          max-width: 100%;
+          height: auto;
+          }
+        </style>
+        ${this.content}
+      `;
+    },
+  },
+};