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_restriction/pos_payment_restriction/models/__init__.py

@@ -0,0 +1,2 @@
+from . import pos_config
+from . import res_config_settings

odoo-bringout-oca-pos-pos_payment_restriction/pos_payment_restriction/models/pos_config.py

@@ -0,0 +1,15 @@
+# Copyright 2019 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+
+from odoo import fields, models
+
+
+class PosConfig(models.Model):
+
+    _inherit = "pos.config"
+
+    payment_amount_readonly = fields.Boolean(
+        help="Payment lines amount would be readonly. This should be used"
+        "with the 'Prefill Cash Payment' option"
+    )

odoo-bringout-oca-pos-pos_payment_restriction/pos_payment_restriction/models/res_config_settings.py

@@ -0,0 +1,10 @@
+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = "res.config.settings"
+
+    pos_payment_amount_readonly = fields.Boolean(
+        related="pos_config_id.payment_amount_readonly",
+        readonly=False,
+    )