Move all OCA HR modules from oca-technical to dedicated oca-hr submodule

Reorganized 67 HR-related modules for better structure:
- Moved all odoo-bringout-oca-hr-* packages from packages/oca-technical/
- Now organized in dedicated packages/oca-hr/ submodule
- Includes attendance, expense, holiday, employee, and contract modules
- Maintains all module functionality while improving project organization

This creates a cleaner separation between general technical modules
and HR-specific functionality.

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

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

odoo-bringout-oca-hr-hr_employee_age/hr_employee_age/models/__init__.py

@@ -0,0 +1,4 @@
+# Copyright (C) 2015 Salton Massally (<smassally@idtlabs.sl>).
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import hr_employee

odoo-bringout-oca-hr-hr_employee_age/hr_employee_age/models/hr_employee.py

@@ -0,0 +1,23 @@
+# Copyright (C) 2015 Salton Massally (<smassally@idtlabs.sl>).
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+
+
+class HrEmployee(models.Model):
+    _inherit = "hr.employee"
+
+    # The age field uses a depends (birthday) that has defined
+    # groups="hr.group_hr_user", if a user without permissions in HR tries to get
+    # the value of this field will have an error.
+    # The correct way to avoid this inconsistency is to define groups to field age
+    age = fields.Integer(compute="_compute_age", groups="hr.group_hr_user")
+
+    @api.depends("birthday")
+    def _compute_age(self):
+        for record in self:
+            age = 0
+            if record.birthday:
+                age = relativedelta(fields.Date.today(), record.birthday).years
+            record.age = age