feat(fusion_clock): add NFC kiosk location to res.company

Adds x_fclk_nfc_kiosk_location_id (Many2one → fusion.clock.location) to
res.company so each company can designate which NFC kiosk location it uses.
Two tests cover field assignment and default-false behaviour.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

fusion_clock/models/__init__.py

@@ -10,3 +10,4 @@ from . import clock_activity_log
 from . import clock_leave_request
 from . import clock_shift
 from . import clock_correction
+from . import res_company

fusion_clock/models/res_company.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+
+from odoo import models, fields
+
+
+class ResCompany(models.Model):
+    _inherit = 'res.company'
+
+    x_fclk_nfc_kiosk_location_id = fields.Many2one(
+        'fusion.clock.location',
+        string='NFC Kiosk Location',
+        help="Designates which fusion.clock.location is bound to the NFC kiosk "
+             "for this company. Required when NFC kiosk is enabled.",
+    )