chore: fix prices

backend/gestion/db/db_clients.go

@@ -990,3 +990,22 @@ func (d *Database) CanUserAccessCommand(
 
 	return exists, err
 }
+
+// SaveClientPushToken enregistre le push token Expo d'un client
+func (d *Database) SaveClientPushToken(clientID int, pushToken string) error {
+	_, err := d.Exec(`UPDATE clients SET push_token = $1 WHERE id = $2`, pushToken, clientID)
+	return err
+}
+
+// DeleteClientPushToken supprime le push token d'un client
+func (d *Database) DeleteClientPushToken(clientID int) error {
+	_, err := d.Exec(`UPDATE clients SET push_token = NULL WHERE id = $1`, clientID)
+	return err
+}
+
+// GetClientPushToken retourne le push token d'un client par son username
+func (d *Database) GetClientPushToken(username string) (string, error) {
+	var token string
+	err := d.QueryRow(`SELECT COALESCE(push_token, '') FROM clients WHERE username = $1`, username).Scan(&token)
+	return token, err
+}