feat: update api doc

op/API.md

@@ -4960,3 +4960,30 @@ DELETE /v1/buckets/{bucket}/objects/{key}
 
 
 
+### system
+
+#### 获取租户环境变量字典表
+
+``` js
+const { data } = await op.api.user.listEnvVariables();
+```
+
+GET /v1/system/dictionaries/tenant?category=env_variables
+
+##### 参数
+
+无
+
+##### 响应
+
+- 200 成功
+
+`application/json`
+
+``` ts
+{
+  id: string;
+  keycode: string;
+  value: string;
+}[]
+```