Add companies and employees to the user context

This allows to use the context for domain to restrict to allowed companies and
employees.

modules/company/CHANGELOG

@@ -1,3 +1,4 @@
+* Add companies and employees to the user context
 
 Version 8.0.0 - 2026-04-20
 --------------------------

modules/company/res.py

@@ -85,7 +85,9 @@ class User(metaclass=PoolMeta):
     def __setup__(cls):
         super().__setup__()
         cls._context_fields.insert(0, 'company')
+        cls._context_fields.insert(0, 'companies')
         cls._context_fields.insert(0, 'employee')
+        cls._context_fields.insert(0, 'employees')
         cls._context_fields.insert(0, 'company_filter')
 
     @classmethod
@@ -148,15 +150,6 @@ class User(metaclass=PoolMeta):
         if len(employees) == 1:
             self.employee, = employees
 
-    @classmethod
-    def _get_preferences(cls, user, context_only=False):
-        res = super()._get_preferences(user,
-            context_only=context_only)
-        if not context_only:
-            res['companies'] = [c.id for c in user.companies]
-            res['employees'] = [e.id for e in user.employees]
-        return res
-
     @classmethod
     def get_companies(cls):
         '''