feat: super 包新增 Hostname 函数获取主机名

utils/super/super.go

@@ -1,6 +1,9 @@
 package super
 
-import "time"
+import (
+	"os"
+	"time"
+)
 
 var launchTime = time.Now()
 
@@ -8,3 +11,8 @@ var launchTime = time.Now()
 func LaunchTime() time.Time {
 	return launchTime
 }
+
+// Hostname 获取主机名
+func Hostname() string {
+	return os.Getenv("HOSTNAME")
+}