添加代理节点功能，包括节点注册、心跳检测和配置获取，完善相关API路由和服务逻辑

atsf_server/middleware/agent-auth.go

@@ -0,0 +1,30 @@
+package middleware
+
+import (
+	"gin-template/common"
+	"github.com/gin-gonic/gin"
+	"net/http"
+)
+
+func AgentAuth() func(c *gin.Context) {
+	return func(c *gin.Context) {
+		token := c.GetHeader("X-Agent-Token")
+		if common.AgentToken == "" {
+			c.JSON(http.StatusUnauthorized, gin.H{
+				"success": false,
+				"message": "Agent Token 未配置",
+			})
+			c.Abort()
+			return
+		}
+		if token == "" || token != common.AgentToken {
+			c.JSON(http.StatusUnauthorized, gin.H{
+				"success": false,
+				"message": "无权进行此操作，Agent Token 无效",
+			})
+			c.Abort()
+			return
+		}
+		c.Next()
+	}
+}