added updated code for core wiring

1. Removed tracing
2. Skipped Registration

pkg/plugin/definition/step.go

@@ -0,0 +1,15 @@
+package definition
+
+import (
+	"context"
+
+	"github.com/beckn/beckn-onix/pkg/model"
+)
+
+type Step interface {
+	Run(ctx *model.StepContext) error
+}
+
+type StepProvider interface {
+	New(context.Context, map[string]string) (Step, func(), error)
+}