feat: add CSV export for approved orders && add non-delivery reason modal for livreurs

backend/gestion/db/db_commands.go

@@ -265,6 +265,12 @@ func (d *Database) CreateCommandWithAddress(username, deliveryAddress string) (*
 	return command, nil
 }
 
+func (d *Database) GetApprovedCommands() ([]models.Command, error) {
+	var commands []models.Command
+	err := d.GDB.Where("status = ?", "approved").Order("created_at DESC").Find(&commands).Error
+	return commands, err
+}
+
 func (d *Database) GetAllCommands(status, username string) ([]map[string]any, error) {
 	if username != "" {
 		if err := validateUsername(username); err != nil {