fix: add core jimeng

src/test/common.ts

@@ -0,0 +1,18 @@
+import { Jimen } from "../jimeng/index.ts"
+import dotenv from 'dotenv';
+dotenv.config();
+
+const jimeng = new Jimen({
+  token: process.env.JIMENG_TOKEN,
+})
+
+console.log("Generating image...");
+
+await jimeng.generateImage({
+  prompt: "创建一幅未来城市的数字艺术作品，充满科技感和创新元素，色彩鲜艳，细节丰富",
+  resolution: "2k"
+}).then((res) => {
+  console.log("Image generation response:", res);
+}).catch((err) => {
+  console.error("Error generating image:", err);
+});