chore: 统一本地服务器与远程仓库源码

- 合并 main 与 master 历史并以服务器结构为基线
- 保留迁移、数据保留、AWS 账单与部署安全能力
- 建立 SDD 规格和 CI 验证闭环

agent/collector/health_probe.go

@@ -13,6 +13,7 @@ import (
 	"net/http"
 	"os/exec"
 	"runtime"
+	"strconv"
 	"strings"
 	"time"
 
@@ -161,7 +162,8 @@ func (h *HealthProbeCollector) execTCP(cfg model.ProbeConfig, start time.Time) m
 		timeout = 10 * time.Second
 	}
 
-	addr := fmt.Sprintf("%s:%d", cfg.TCPHost, cfg.TCPPort)
+	// JoinHostPort 兼容 IPv4、主机名与 IPv6 字面量。 // Logan.Li
+	addr := net.JoinHostPort(cfg.TCPHost, strconv.Itoa(cfg.TCPPort))
 	conn, err := net.DialTimeout("tcp", addr, timeout)
 	latencyMs := int(time.Since(start).Milliseconds())
 	result.LatencyMs = latencyMs