feat: registered file based routing

internal/api/routes/ping.go

@@ -0,0 +1,13 @@
+package routes
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func RegisterPingRoutes(api *gin.RouterGroup) {
+	api.GET("/ping", func(c *gin.Context) {
+		c.String(http.StatusOK, "Pong!")
+	})
+}