完善中央与边缘部署、远程写入与监控文档

- 增加中央与边缘完整配置和部署脚本
- 引入 VictoriaMetrics 数据源与 remote_write 故障排查说明
- 新增 edge-agent 配置脚本、ONVIF 自建 exporter 与 ping 监控示例

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

edge-agent/config/setup-remote-write.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+
+# 设置远程推送地址脚本
+# 使用方法: ./setup-remote-write.sh <中央服务器地址> [端口]
+# 支持IP地址和域名
+
+set -e
+
+CENTRAL_HOST=${1:-"192.168.1.10"}
+CENTRAL_PORT=${2:-"8428"}
+CONFIG_FILE="../prometheus-edge/prometheus.yml"
+
+echo "=== 设置Prometheus远程推送地址 ==="
+echo ""
+
+if [ -z "$1" ]; then
+    echo "使用方法: $0 <中央服务器地址> [端口]"
+    echo "示例: $0 192.168.1.10 8428"
+    echo "      $0 prometheus.company.com"
+    echo "      $0 prometheus.local 8428"
+    echo ""
+    read -p "请输入中央服务器地址 (IP或域名): " CENTRAL_HOST
+    read -p "请输入端口 (默认8428): " CENTRAL_PORT_INPUT
+    if [ -n "$CENTRAL_PORT_INPUT" ]; then
+        CENTRAL_PORT=$CENTRAL_PORT_INPUT
+    fi
+fi
+
+echo "🔧 配置信息："
+echo "   中央服务器地址: $CENTRAL_HOST"
+echo "   端口: $CENTRAL_PORT"
+echo "   配置文件: $CONFIG_FILE"
+echo ""
+
+# 检查配置文件是否存在
+if [ ! -f "$CONFIG_FILE" ]; then
+    echo "❌ 配置文件 $CONFIG_FILE 不存在"
+    exit 1
+fi
+
+# 备份原配置文件
+cp "$CONFIG_FILE" "${CONFIG_FILE}.backup.$(date +%Y%m%d_%H%M%S)"
+echo "📋 已备份原配置文件"
+
+# 更新配置文件中的远程推送地址
+sed -i "s|http://\${CENTRAL_SERVER_HOST}:\${CENTRAL_SERVER_PORT}|http://$CENTRAL_HOST:$CENTRAL_PORT|g" "$CONFIG_FILE"
+
+echo "✅ 远程推送地址已更新"
+echo ""
+
+# 显示更新后的配置
+echo "🔍 更新后的remote_write配置："
+grep -A 5 "remote_write:" "$CONFIG_FILE"
+
+echo ""
+echo "🔄 重启Prometheus服务以应用新配置："
+echo "   docker-compose restart prometheus-edge"
+echo ""
+echo "📊 检查远程写入状态："
+echo "   curl http://localhost:9090/api/v1/status/config"
+echo ""
+echo "🔗 查看远程写入目标："
+echo "   curl http://localhost:9090/api/v1/status/tsdb"