fix struct

internal/logic/hello/ping.go

@@ -0,0 +1,16 @@
+package hello
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+func Ping(ctx *gin.Context) {
+	ctx.JSON(http.StatusOK, map[string]any{
+		"PING":    "PONG",
+		"TIMESEQ": time.Now().Nanosecond(),
+	})
+	return
+}