移除未使用的 cnb 导出，更新依赖版本，添加 opencode 客户端示例

agent/routes/opencode/index.ts

@@ -0,0 +1,12 @@
+import { createOpencodeClient } from "@opencode-ai/sdk"
+
+const client = await createOpencodeClient({
+  // baseUrl: "https://yccb64t1z-100.cnb.run",
+  // auth: async () => {
+  //   return 'cm9vdDozR0I2MDg5ZGpYOE5oMDFjM1FteE5DWDd0ZkI='
+  // }
+  baseUrl: "http://localhost:4096",
+})
+
+const sessionList = await client.session.list()
+console.log(sessionList.data)