oss-api 添加 FileService rpc 接口

oss-api/src/main/java/cn/reghao/oss/api/iface/FileService.java

@@ -0,0 +1,9 @@
+package cn.reghao.oss.api.iface;
+
+/**
+ * @author reghao
+ * @date 2024-07-07 16:55:29
+ */
+public interface FileService {
+    String getAccountAvatar(long userId);
+}