feat(server): 支持 MySQL 一主多从拓扑调度与复制健康检查

- DeliveryTask/DeploymentResult 新增 target_hosts/target_host_ips 完整节点列表(主节点在前)
- 交付输入支持 replica_count(1-7)与有序 target_hosts,按节点数放大配额/预留/资源用量
- 端口占用与已占主机解析改为逗号列表,兼容存量单主机字段
- 指定主机校验池成员/重复/单机实例数,自动补齐剩余节点或延后调度
- AWX Limit 与回滚覆盖全部节点,extra_vars 下发主从主机与 IP 列表
- completeTask 全节点 TCP 探活,副本经 mysqlReplicationReady 校验复制线程状态
- awxTaskSummary 按服务类型生成摘要;go-sql-driver/mysql 提为直接依赖

server/internal/handler/task_log.go

@@ -216,11 +216,18 @@ func (h *TaskLogHandler) getWayneTask(c *gin.Context, id string, userID uint64,
 }
 
 func awxTaskSummary(task model.DeliveryTask) taskLogSummary {
+	serviceName := "mysql"
+	serviceLabel := "MySQL"
+	if strings.EqualFold(strings.TrimSpace(task.ServiceType), "postgresql") ||
+		(strings.TrimSpace(task.ServiceType) == "" && strings.EqualFold(strings.TrimSpace(task.Component), "postgresql")) {
+		serviceName = "postgresql"
+		serviceLabel = "PostgreSQL"
+	}
 	return taskLogSummary{
 		ID:             "awx:" + task.ID,
 		Source:         "awx",
-		Service:        "mysql",
-		Name:           "MySQL 标准化交付 · " + task.InstanceName,
+		Service:        serviceName,
+		Name:           serviceLabel + " 标准化交付 · " + task.InstanceName,
 		Runner:         "AWX Job Template #" + strconv.FormatUint(task.TargetID, 10),
 		Status:         task.Status,
 		StatusText:     textForTaskStatus(task.Status),