chore: add create user route

backend/gestion/db/db_alert.go

@@ -68,8 +68,7 @@ func (d *Database) GetAllAlerts() ([]models.AlertPolicy, error) {
 func (d *Database) DeleteAlertPolicy(id int) error {
 
 	query := `
-		UPDATE alerte_policy
-		SET status = 'false', updated_at = CURRENT_TIMESTAMP
+		DELETE FROM alerte_policy
 		WHERE id = $1
 	`
 	_, err := d.Exec(query, id)