diff --git a/__manifest__.py b/__manifest__.py
index 5721541..16f5865 100644
--- a/__manifest__.py
+++ b/__manifest__.py
@@ -29,4 +29,4 @@ Key Features:
     'installable': True,
     'application': False,
     'license': 'LGPL-3',
-}
+}
\ No newline at end of file
diff --git a/models/pos_order.py b/models/pos_order.py
index 32d0391..e69de29 100644
--- a/models/pos_order.py
+++ b/models/pos_order.py
@@ -1,118 +0,0 @@
-# Part of Odoo. See LICENSE file for full copyright and licensing details.
-
-from odoo import api, models, fields
-
-class PosOrder(models.Model):
-    _inherit = 'pos.order'
-
-    def action_pos_order_paid(self):
-        """Override to update the customer's membership level in the background."""
-        res = super().action_pos_order_paid()
-        
-        for order in self:
-            if order.partner_id:
-                # Update total spend
-                order.partner_id.sudo().total_spend += order.amount_total
-                
-                # Update membership level synchronously
-                order._update_customer_membership_level_logic()
-        return res
-
-    def confirm_coupon_programs(self, coupon_data):
-        """Also update membership in background after coupon confirmation."""
-        res = super().confirm_coupon_programs(coupon_data)
-        for order in self:
-            if order.partner_id:
-                order._update_customer_membership_level_logic()
-        return res
-
-    def _update_customer_membership_level_logic(self):
-        """Internal logic for membership determination, called by background worker."""
-        self.ensure_one()
-        partner = self.partner_id
-        
-        # 1. Get total purchases from the new total_spend field
-        total_purchases = partner.total_spend
-
-        # 2. Get multi-level programs
-        loyalty_programs = self.env['loyalty.program'].sudo().search(
-            [('multi_level_membership', '=', True)],
-            order='minimum_spend asc',
-        )
-
-        if not loyalty_programs:
-            return
-
-        # 3. Determine level
-        matched_program = None
-        for program in loyalty_programs:
-            if total_purchases >= (program.minimum_spend or 0.0):
-                matched_program = program
-            else:
-                break
-
-        if not matched_program:
-            if partner.membership_level_id:
-                partner.sudo().write({'membership_level_id': False})
-            return
-
-        # 4. Update level
-        if partner.membership_level_id.id != matched_program.id:
-            partner.sudo().write({'membership_level_id': matched_program.id})
-
-        # 5. Transfer points
-        all_multi_level_program_ids = loyalty_programs.mapped('id')
-        other_programs = [pid for pid in all_multi_level_program_ids if pid != matched_program.id]
-        
-        if other_programs:
-            # Find ALL old cards (with or without points) to clean them up
-            all_old_cards = self.env['loyalty.card'].sudo().search([
-                ('partner_id', '=', partner.id),
-                ('program_id', 'in', other_programs),
-            ])
-
-            if all_old_cards:
-                new_card = self.env['loyalty.card'].sudo().search([
-                    ('partner_id', '=', partner.id),
-                    ('program_id', '=', matched_program.id),
-                ], limit=1)
-
-                if not new_card:
-                    new_card = self.env['loyalty.card'].sudo().create({
-                        'partner_id': partner.id,
-                        'program_id': matched_program.id,
-                        'points': 0,
-                    })
-
-                # Transfer non-zero points to the new card, then delete ALL old cards
-                for old_card in all_old_cards:
-                    pts = old_card.points
-                    if abs(pts) > 0.0001:
-                        new_card.points += pts
-
-                # Transfer loyalty history (point transactions) to the new card
-                old_histories = self.env['loyalty.history'].sudo().search([
-                    ('card_id', 'in', all_old_cards.ids)
-                ])
-                if old_histories:
-                    old_histories.write({'card_id': new_card.id})
-
-                # Transfer POS order line coupon references to the new card
-                old_pos_lines = self.env['pos.order.line'].sudo().search([
-                    ('coupon_id', 'in', all_old_cards.ids)
-                ])
-                if old_pos_lines:
-                    old_pos_lines.write({'coupon_id': new_card.id})
-
-                # Transfer Sales order line coupon references to the new card
-                old_sale_lines = self.env['sale.order.line'].sudo().search([
-                    ('coupon_id', 'in', all_old_cards.ids)
-                ])
-                if old_sale_lines:
-                    old_sale_lines.write({'coupon_id': new_card.id})
-
-                # Archive old-level cards (active=False) instead of deleting,
-                # because pos_order_line.coupon_id may reference them (FK constraint).
-                # Archiving hides them from the UI while preserving order history.
-                all_old_cards.write({'active': False})
-