fix: add missing memberType and danLevel fields to FamilyMemberVO

cfc-backend/src/main/java/com/etotem/cfc/dto/FamilyMemberVO.java

@@ -41,4 +41,10 @@ public class FamilyMemberVO {
 
     /** 是否对家庭成员可见 */
     private Integer showToFamily;
+
+    /** 成员类型: parent/child */
+    private String memberType;
+
+    /** 段位等级（仅child） */
+    private String danLevel;
 }