```

feat: 添加服务器重启脚本

添加restart.sh脚本用于管理服务器进程，包含以下功能：
- 自动查找并停止现有服务器进程
- 启动新的服务器实例
- 管理进程ID文件和日志输出
- 支持端口配置和状态检查
```

restart.sh

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+LOG_DIR="$SCRIPT_DIR/logs"
+PID_FILE="$LOG_DIR/server.pid"
+LOG_FILE="$LOG_DIR/server.log"
+
+mkdir -p "$LOG_DIR"
+
+PORT="${PORT:-}"
+if [[ -z "$PORT" && -f "$SCRIPT_DIR/.env" ]]; then
+  PORT="$(grep -E '^PORT=' "$SCRIPT_DIR/.env" | tail -n 1 | cut -d '=' -f 2- | tr -d '\r' || true)"
+fi
+PORT="${PORT:-5000}"
+
+find_project_server_pids() {
+  pgrep -f "node src/server.js" | while read -r pid; do
+    [[ -n "$pid" ]] || continue
+    [[ -d "/proc/$pid" ]] || continue
+
+    local cwd
+    cwd="$(readlink -f "/proc/$pid/cwd" 2>/dev/null || true)"
+    if [[ "$cwd" == "$SCRIPT_DIR" ]]; then
+      echo "$pid"
+    fi
+  done
+}
+
+stop_existing_server() {
+  local pids
+  pids="$(find_project_server_pids || true)"
+
+  if [[ -z "$pids" ]]; then
+    echo "No existing server process found for $SCRIPT_DIR"
+    return
+  fi
+
+  echo "Stopping existing server process(es): $pids"
+  while read -r pid; do
+    [[ -n "$pid" ]] || continue
+    kill "$pid" 2>/dev/null || true
+  done <<< "$pids"
+
+  sleep 2
+
+  local remaining
+  remaining="$(find_project_server_pids || true)"
+  if [[ -n "$remaining" ]]; then
+    echo "Force killing remaining process(es): $remaining"
+    while read -r pid; do
+      [[ -n "$pid" ]] || continue
+      kill -9 "$pid" 2>/dev/null || true
+    done <<< "$remaining"
+  fi
+}
+
+start_server() {
+  cd "$SCRIPT_DIR"
+  echo "Starting server from $SCRIPT_DIR on port $PORT"
+  nohup node src/server.js >> "$LOG_FILE" 2>&1 &
+  local pid=$!
+  echo "$pid" > "$PID_FILE"
+  echo "Started PID: $pid"
+}
+
+show_status() {
+  sleep 2
+  echo
+  echo "Active project server process(es):"
+  find_project_server_pids || true
+  echo
+  echo "Port check:"
+  ss -lntp 2>/dev/null | grep ":$PORT" || true
+  echo
+  echo "Recent log output:"
+  tail -n 30 "$LOG_FILE" 2>/dev/null || true
+}
+
+stop_existing_server
+start_server
+show_status