Organize backend into product executable and shared Go modules

backend/shared/database/internal/transaction/factory.go

@@ -0,0 +1,18 @@
+package transactionimp
+
+import (
+	"git.sendico.io/tech/sxchnge/shared/database/transaction"
+	"go.mongodb.org/mongo-driver/v2/mongo"
+)
+
+type MongoTransactionFactory struct {
+	client *mongo.Client
+}
+
+func (mtf *MongoTransactionFactory) CreateTransaction() transaction.Transaction {
+	return Create(mtf.client)
+}
+
+func CreateFactory(client *mongo.Client) transaction.Factory {
+	return &MongoTransactionFactory{client: client}
+}