fix: 修复启动脚本不正确的问题

start-api.sh

@@ -8,6 +8,22 @@ cd "$(dirname "$0")/server"
 PORT="${PORT:-5599}"
 export PORT
 
+# 释放端口，避免 EADDRINUSE（上次未退出或多次启动）
+if command -v lsof >/dev/null 2>&1; then
+  pids=$(lsof -t -i ":$PORT" 2>/dev/null) || true
+  if [ -n "$pids" ]; then
+    echo "[720yun-offline-api] 停止占用端口 ${PORT} 的进程: $pids"
+    echo "$pids" | xargs kill 2>/dev/null || true
+    sleep 1
+  fi
+elif command -v fuser >/dev/null 2>&1; then
+  if fuser -n tcp "$PORT" >/dev/null 2>&1; then
+    echo "[720yun-offline-api] 停止占用端口 ${PORT} 的进程..."
+    fuser -k "$PORT/tcp" 2>/dev/null || true
+    sleep 1
+  fi
+fi
+
 echo "[720yun-offline-api] 安装依赖..."
 npm install --no-audit --no-fund