diff --git a/scripts/publish-github.sh b/scripts/publish-github.sh
index db123e4..bcb8eb0 100755
--- a/scripts/publish-github.sh
+++ b/scripts/publish-github.sh
@@ -33,6 +33,10 @@ if command -v git-lfs >/dev/null 2>&1; then
   done
 fi
 
+# 2.5) 公開端不吃 LFS：刪掉 .gitattributes，否則 mirror commit 時 git-lfs 會把
+#      實體檔又轉回 pointer 上傳（GitHub README 圖就破了——2026-07-18 實撞）
+rm -f "$TMP_EXPORT/.gitattributes"
+
 # 3) 套排除清單
 while IFS= read -r p; do
   case "$p" in ''|\#*) continue ;; esac