refactor(acme-client): 将acme-client改造成ts包并优化项目结构

重构acme-client模块，将原有JavaScript代码迁移至TypeScript
添加类型定义文件(.d.ts)和类型检查
更新构建配置和脚本以支持TypeScript编译
优化项目目录结构和模块导出方式
更新相关依赖和开发工具配置

packages/core/acme-client/src/index.test.ts

@@ -0,0 +1,19 @@
+import assert from "node:assert/strict";
+import { directory, getAllSslProviderDomains, getDirectoryUrl } from "./index.js";
+
+declare const describe: any;
+declare const it: any;
+
+describe("directory helpers", () => {
+    it("selects the provider specific directory endpoint", () => {
+        assert.equal(getDirectoryUrl({ sslProvider: "sslcom", pkType: "ec" }), directory.sslcom.ec);
+        assert.equal(getDirectoryUrl({ sslProvider: "letsencrypt", pkType: "rsa" }), directory.letsencrypt.production);
+    });
+
+    it("includes configured provider domains", () => {
+        const domains = getAllSslProviderDomains();
+
+        assert.ok(domains.includes("acme.litessl.com"));
+        assert.ok(domains.includes("acme.ssl.com"));
+    });
+});