feat: add admin work visibility controls

server-rs/crates/spacetime-module/src/bark_battle/tables.rs

@@ -42,7 +42,7 @@ pub struct BarkBattlePublishedConfigRow {
     pub(crate) created_at: Timestamp,
     pub(crate) updated_at: Timestamp,
     pub(crate) published_at: Timestamp,
-    // ???????????????????????????????
+    // 后台可见性开关；默认显示，隐藏后不进入公开列表。
     #[default(WORK_VISIBLE_DEFAULT)]
     pub(crate) visible: bool,
 }