Organize backend into product executable and shared Go modules

backend/product/customers/store/mongo/user.go

@@ -0,0 +1,13 @@
+package accountdb
+
+import (
+	"context"
+	customermodel "git.sendico.io/tech/sxchnge/product/customers/model"
+
+	"git.sendico.io/tech/sxchnge/shared/database/repository"
+)
+
+func (db *AccountDB) GetByEmail(ctx context.Context, email string) (*customermodel.Account, error) {
+	var account customermodel.Account
+	return &account, db.FindOne(ctx, repository.Filter("login", email), &account)
+}