Organize backend into product executable and shared Go modules

backend/product/app/metrics/router.go

@@ -0,0 +1,14 @@
+package metrics
+
+import (
+	"git.sendico.io/tech/sxchnge/shared/logging"
+	"github.com/go-chi/chi/v5"
+)
+
+type Metrics interface {
+	Finish()
+}
+
+func NewMetricsRouter(logger mlogger.Logger, router chi.Router, endpoint string) (Metrics, error) {
+	return newMetricsRouter(logger, router, endpoint), nil
+}