🔧 fix(sync): avoid backtick expansion

scripts/sync_standards.sh

@@ -128,11 +128,11 @@ if [ -n "$REL_SNAPSHOT" ]; then
     [ -f "$md" ] || continue
     tmp="$(mktemp 2>/dev/null || echo "$AGENTS_DST/.rewrite.$(basename "$md").$timestamp")"
     sed \
-      -e "s#\`docs/tsl/#\`$DOCS_PREFIX/tsl/#g" \
-      -e "s#\`docs/cpp/#\`$DOCS_PREFIX/cpp/#g" \
-      -e "s#\`docs/python/#\`$DOCS_PREFIX/python/#g" \
-      -e "s#\`docs/markdown/#\`$DOCS_PREFIX/markdown/#g" \
-      -e "s#\`docs/common/#\`$DOCS_PREFIX/common/#g" \
+      -e 's#`docs/tsl/#`'"$DOCS_PREFIX"'/tsl/#g' \
+      -e 's#`docs/cpp/#`'"$DOCS_PREFIX"'/cpp/#g' \
+      -e 's#`docs/python/#`'"$DOCS_PREFIX"'/python/#g' \
+      -e 's#`docs/markdown/#`'"$DOCS_PREFIX"'/markdown/#g' \
+      -e 's#`docs/common/#`'"$DOCS_PREFIX"'/common/#g' \
       "$md" >"$tmp"
     mv "$tmp" "$md"
   done
@@ -187,7 +187,7 @@ fi
 
 langs_line=""
 for name in $agents_langs; do
-  entry="`.agents/$name/index.md`"
+  entry='`.agents/'"$name"'/index.md`'
   if [ -z "$langs_line" ]; then
     langs_line="$entry"
   else
@@ -197,8 +197,8 @@ done
 
 {
   printf "%s\n" "$AGENTS_BLOCK_START"
-  printf "%s\n\n" "请以 `.agents/` 下的规则为准："
-  printf "%s\n" "- 入口：`.agents/index.md`"
+  printf "%s\n\n" '请以 `.agents/` 下的规则为准：'
+  printf "%s\n" '- 入口：`.agents/index.md`'
   if [ -n "$langs_line" ]; then
     printf "%s\n" "- 语言规则：$langs_line"
   else