[IMP] website_sale_aplicoop: add sequence field to product.category for web ordering

- Add sequence field (default 10) to product.category with _order = "sequence, name"
- Inherit product.category tree view to add drag-handle widget
- Sort category hierarchy and available categories by sequence in controller
- Migration 18.0.1.9.0: add sequence column to product_category table
- Bump version to 18.0.1.9.0

website_sale_aplicoop/models/__init__.py

@@ -1,7 +1,9 @@
-from . import group_order
-from . import product_extension
-from . import res_config_settings
-from . import res_partner_extension
-from . import sale_order_extension
-from . import stock_picking_extension
-from . import js_translations
+from . import group_order  # noqa: F401
+from . import group_order_slot  # noqa: F401
+from . import product_category_extension  # noqa: F401
+from . import product_extension  # noqa: F401
+from . import res_config_settings  # noqa: F401
+from . import res_partner_extension  # noqa: F401
+from . import sale_order_extension  # noqa: F401
+from . import stock_picking_extension  # noqa: F401
+from . import js_translations  # noqa: F401

website_sale_aplicoop/models/product_category_extension.py

@@ -0,0 +1,12 @@
+# Copyright 2026 Criptomart
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields
+from odoo import models
+
+
+class ProductCategory(models.Model):
+    _inherit = "product.category"
+    _order = "sequence, name"
+
+    sequence = fields.Integer(default=10)