Menu: full scale presets; overlay ships extracted menu extension

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

bin/omarchy-cn-install-overlay

@@ -24,6 +24,30 @@ valid_entry() {
   [[ $1 == "cn" || $1 =~ ^bin/(omarchycn|omarchy-cn-[a-z0-9-]+)$ ]]
 }
 
+MENU_EXT="$HOME/.config/omarchy/extensions/omarchy-menu.jsonc"
+MENU_MARKER="// OmarchyCN overlay menu extension"
+
+install_menu_extension() {
+  if [[ -s $MENU_EXT ]] && ! grep -qF "$MENU_MARKER" "$MENU_EXT"; then
+    echo "跳过菜单扩展：$MENU_EXT 已有用户内容，请手动合并 default/omarchy/omarchy-menu.jsonc 的 OmarchyCN 段"
+    return 0
+  fi
+  mkdir -p "${MENU_EXT%/*}"
+  {
+    echo "$MENU_MARKER"
+    echo "{"
+    sed -n '/^  \/\/ OmarchyCN$/,$p' "$SRC/default/omarchy/omarchy-menu.jsonc" | sed '$d'
+    echo "}"
+  } > "$MENU_EXT"
+  echo "OmarchyCN 菜单扩展已写入 $MENU_EXT"
+}
+
+remove_menu_extension() {
+  if [[ -f $MENU_EXT ]] && grep -qF "$MENU_MARKER" "$MENU_EXT"; then
+    rm -f "$MENU_EXT"
+  fi
+}
+
 uninstall() {
   if [[ ! -f $MANIFEST ]]; then
     echo "No overlay manifest at $MANIFEST" >&2
@@ -55,6 +79,7 @@ uninstall() {
     fi
   done < "$MANIFEST"
 
+  remove_menu_extension
   rm -f "$MANIFEST"
   echo "OmarchyCN overlay removed from $dest"
 }
@@ -104,6 +129,7 @@ install() {
     run_in "$DEST" cp "$SRC/$rel" "$DEST/$rel"
   done
 
+  install_menu_extension
   echo "OmarchyCN overlay installed into $DEST (${#entries[@]} commands)"
   echo "Verify: omarchy cn version"
 }