Add curl|bash manage.sh with deploy/uninstall/update menu.

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

deploy/pull_and_restart.sh

@@ -1,14 +1,18 @@
 #!/usr/bin/env bash
 # 一键更新/部署：仅 git pull，禁止 scp 传代码。
-# 用法（服务器上）: bash /opt/eth_hedge_sim/deploy/pull_and_restart.sh
+# 用法:
+#   bash /opt/eth_hedge_sim/deploy/pull_and_restart.sh
+#   或通过 manage.sh 选 1/3
 set -euo pipefail
 
 ROOT="$(cd "$(dirname "$0")/.." && pwd)"
 cd "$ROOT"
 
 echo "[eth_hedge_sim] pull @ $ROOT"
-git fetch --all --prune
-git pull --ff-only
+if [[ -d "$ROOT/.git" ]]; then
+  git fetch --all --prune
+  git pull --ff-only
+fi
 
 if [[ ! -f "$ROOT/.env" ]]; then
   echo "[eth_hedge_sim] missing .env — copy from example"
@@ -17,6 +21,7 @@ if [[ ! -f "$ROOT/.env" ]]; then
   sed -i 's/^OKX_HTTP_PROXY=.*/OKX_HTTP_PROXY=/' "$ROOT/.env" || true
   sed -i 's/^API_PORT=.*/API_PORT=5155/' "$ROOT/.env" || true
   sed -i 's/^ENV_NAME=.*/ENV_NAME=test/' "$ROOT/.env" || true
+  sed -i 's/^EXCHANGE=.*/EXCHANGE=okx/' "$ROOT/.env" || true
   echo "[eth_hedge_sim] wrote .env — please review AUTH_* secrets"
 fi
 
@@ -29,7 +34,7 @@ pip install -U pip
 pip install -r "$ROOT/requirements.txt"
 
 if ! command -v npm >/dev/null 2>&1; then
-  echo "ERROR: npm not found. Install Node.js 18+ first."
+  echo "ERROR: npm not found. Install Node.js 18+ first (manage.sh 一键部署会自动装)."
   exit 1
 fi
 
@@ -47,4 +52,4 @@ fi
 pm2 startOrReload "$ROOT/deploy/ecosystem.config.cjs" --update-env
 pm2 save
 
-echo "[eth_hedge_sim] done. health: http://127.0.0.1:5155/health  public: https://dc.hyf2.cc/health"
+echo "[eth_hedge_sim] done. health: http://127.0.0.1:5155/health"