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_lot_selection/pos_lot_selection/models/__init__.py

@@ -0,0 +1 @@
+from . import stock_lot

odoo-bringout-oca-pos-pos_lot_selection/pos_lot_selection/models/stock_lot.py

@@ -0,0 +1,30 @@
+# Copyright 2022 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+
+from odoo import api, models
+from odoo.tools import float_compare
+
+
+class ProductionLot(models.Model):
+    _inherit = "stock.lot"
+
+    @api.model
+    def get_available_lots_for_pos(self, product_id, company_id):
+        lots = self.sudo().search(
+            [
+                "&",
+                ["product_id", "=", product_id],
+                "|",
+                ["company_id", "=", company_id],
+                ["company_id", "=", False],
+            ]
+        )
+
+        lots = lots.filtered(
+            lambda l: float_compare(
+                l.product_qty, 0, precision_digits=l.product_uom_id.rounding
+            )
+            > 0
+        )
+
+        return lots.mapped("name")