Add oca-purchase submodule with 96 purchase modules moved from oca-workflow-process

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

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

odoo-bringout-oca-purchase-workflow-purchase_security/purchase_security/models/res_partner.py

@@ -0,0 +1,20 @@
+# Copyright 2024 Tecnativa - Víctor Martínez
+# License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html
+
+from odoo import fields, models
+
+
+class ResPartner(models.Model):
+    _inherit = "res.partner"
+
+    purchase_user_id = fields.Many2one(
+        comodel_name="res.users",
+        domain="[('share', '=', False)]",
+        string="Purchase representative",
+        index=True,
+    )
+    purchase_team_id = fields.Many2one(
+        comodel_name="purchase.team",
+        string="Purchase team",
+        index=True,
+    )