refactor: update interface contract and applies some fixes

internal/repository/base_repository.go

@@ -10,7 +10,7 @@ type baseRepository[T any] struct {
 	tableName string
 }
 
-func NewBaseRepository[T any](db *sql.DB, tableName string) Repository[T] {
+func NewBaseRepository[T any](db *sql.DB, tableName string) *baseRepository[T] {
 	return &baseRepository[T]{
 		db:        db,
 		tableName: tableName,
@@ -25,14 +25,34 @@ func (r *baseRepository[T]) GetDB() *sql.DB {
 	return r.db
 }
 
+func (r *baseRepository[T]) GetAll() ([]T, error) {
+	query := r.BuildQuery("SELECT * FROM %s ORDER BY id DESC")
+
+	rows, err := r.db.Query(query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	entities := make([]T, 0)
+	rowsErr := ScanRows(rows, &entities)
+
+	if rowsErr != nil {
+		return nil, err
+	}
+
+	return entities, nil
+}
+
 func (r *baseRepository[T]) GetByID(id int) (*T, error) {
 	var entity T
 
 	query := r.BuildQuery("SELECT * FROM %s WHERE id = ?")
-	err := r.db.QueryRow(
+	row := r.db.QueryRow(
 		query,
 		id,
-	).Scan(entity)
+	)
+	err := scanRow(row, &entity)
 
 	if err != nil {
 		if err == sql.ErrNoRows {
@@ -44,33 +64,8 @@ func (r *baseRepository[T]) GetByID(id int) (*T, error) {
 	return &entity, nil
 }
 
-func (r *baseRepository[T]) GetAll() ([]T, error) {
-	query := r.BuildQuery("SELECT * FROM %s ORDER BY id DESC")
-
-	rows, err := r.db.Query(query)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-
-	entities := make([]T, 0)
-	for rows.Next() {
-		var entity T
-		if err := rows.Scan(entity); err != nil {
-			return nil, err
-		}
-		entities = append(entities, entity)
-	}
-
-	if err = rows.Err(); err != nil {
-		return nil, err
-	}
-
-	return entities, nil
-}
-
 func (r *baseRepository[T]) Delete(id int) (int64, error) {
-	query := r.BuildQuery("DELETE %s WHERE id = ? LIMIT 1")
+	query := r.BuildQuery("DELETE FROM %s WHERE id = ?")
 	res, err := r.db.Exec(query, id)
 	if err != nil {
 		return 0, err