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