Add single-exchange instance-only deploy menu options.

Manage menu 4/5/6 install OKX/Binance/Gate Flask only without hub or agents; reuse setup_env --only and narrowed PM2 verify.

Co-authored-by: Cursor <cursoragent@cursor.com>

deploy/manage.sh

@@ -105,7 +105,10 @@ show_banner() {
 }
 
 show_menu() {
-  echo "  1) 一键部署"
+  echo "  1) 一键部署(全套:三所+中控)"
+  echo "  4) 仅 OKX 实例(不含中控)"
+  echo "  5) 仅 Binance 实例(不含中控)"
+  echo "  6) 仅 Gate 实例(不含中控)"
   echo "  2) 一键卸载"
   echo "  3) 更新"
   echo "  0) 退出"
@@ -122,11 +125,20 @@ main_menu() {
     show_banner
     show_menu
     local choice=""
-    cm_read choice "请选择 [0-3]: "
+    cm_read choice "请选择 [0-6]: "
     case "${choice}" in
       1)
         bash "${LIB_DIR}/install.sh"
         ;;
+      4)
+        bash "${LIB_DIR}/install.sh" --exchange okx
+        ;;
+      5)
+        bash "${LIB_DIR}/install.sh" --exchange binance
+        ;;
+      6)
+        bash "${LIB_DIR}/install.sh" --exchange gate
+        ;;
       2)
         bash "${LIB_DIR}/uninstall.sh"
         ;;
@@ -138,7 +150,7 @@ main_menu() {
         exit 0
         ;;
       *)
-        echo "无效选项,请输入 0-3"
+        echo "无效选项,请输入 0-6"
         ;;
     esac
     echo ""