Move all OCA POS modules from oca-technical to dedicated oca-pos submodule

Reorganized 74 POS-related modules for better structure:
- Moved all odoo-bringout-oca-pos-* packages from packages/oca-technical/
- Now organized in dedicated packages/oca-pos/ submodule
- Includes payment, receipt, loyalty, order, product, and partner modules
- Maintains all module functionality while improving project organization

This creates a cleaner separation between general technical modules
and Point of Sale specific functionality.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

odoo-bringout-oca-pos-pos_discount_all/pos_discount_all/models/__init__.py

@@ -0,0 +1,2 @@
+from . import pos_session
+from . import product_template

odoo-bringout-oca-pos-pos_discount_all/pos_discount_all/models/pos_session.py

@@ -0,0 +1,14 @@
+# Copyright (C) 2022-Today GRAP (http://www.grap.coop)
+# @author Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html
+
+from odoo import models
+
+
+class PosSession(models.Model):
+    _inherit = "pos.session"
+
+    def _loader_params_product_product(self):
+        res = super()._loader_params_product_product()
+        res["search_params"]["fields"].append("is_discount")
+        return res

odoo-bringout-oca-pos-pos_discount_all/pos_discount_all/models/product_template.py

@@ -0,0 +1,19 @@
+# Copyright (C) 2022-Today GRAP (http://www.grap.coop)
+# @author Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html
+
+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    is_discount = fields.Boolean(
+        string="Is a Discount",
+        help="Check this box if you use this product to realize"
+        " discount on sale. If check the sale lines will be"
+        " ignored when computing the amount without discount."
+        " If you use 'Pos Discount' Odoo module, you should"
+        " check this box for the product you configured"
+        " as the 'Discount Product' on your PoS config.",
+    )