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_payment_terminal/pos_payment_terminal/models/__init__.py

@@ -0,0 +1 @@
+from . import pos_payment_method, pos_session

odoo-bringout-oca-pos-pos_payment_terminal/pos_payment_terminal/models/pos_payment_method.py

@@ -0,0 +1,25 @@
+# Copyrght 2020 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import _, fields, models
+
+
+class PosPaymentMethod(models.Model):
+    _inherit = "pos.payment.method"
+
+    def _get_payment_terminal_selection(self):
+        res = super()._get_payment_terminal_selection()
+        res.append(("oca_payment_terminal", _("OCA Payment Terminal")))
+        return res
+
+    oca_payment_terminal_mode = fields.Selection(
+        [("card", "Card"), ("check", "Check")], string="Payment Mode", default="card"
+    )
+    oca_payment_terminal_id = fields.Char(
+        string="Terminal identifier",
+        help=(
+            "The identifier of the terminal as known by the hardware proxy. "
+            "Leave empty if the proxy has only one terminal connected."
+        ),
+    )

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

@@ -0,0 +1,13 @@
+from odoo import models
+
+
+class PosSession(models.Model):
+    _inherit = "pos.session"
+
+    def _loader_params_pos_payment_method(self):
+        params = super()._loader_params_pos_payment_method()
+        params["search_params"]["fields"].extend(
+            ["oca_payment_terminal_mode", "oca_payment_terminal_id"]
+        )
+
+        return params