feat(fusion_clock): NFC card enrollment wizard + employee form field

Adds a tap-driven enrollment workflow so managers can pair NFC/RFID
cards to employees using a USB HID reader at their desk:

- New wizard model fusion.clock.nfc.enrollment.wizard with auto-focused
  Card UID field, employee picker, and reassignment warning if the
  card is already held by someone else.
- Two actions: 'Enroll Card' (single) and 'Enroll & Next' (bulk).
- Menu entry under Fusion Clock root, manager-gated.
- Exposes x_fclk_nfc_card_uid on the Employee form Clock Settings
  section (next to Kiosk PIN) so it can be inspected/edited directly.
- Bumps manifest to 19.0.3.1.0 for asset cache bust.

Wizard reuses FusionClockNfcKiosk._normalize_uid so stored format
matches what the kiosk /tap endpoint looks up later. Reassignment
clears the UID from the previous holder and logs both events to the
activity log under 'card_enrollment'.

fusion_clock/__manifest__.py

@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Clock',
-    'version': '19.0.3.0.0',
+    'version': '19.0.3.1.0',
     'category': 'Human Resources/Attendances',
     'summary': 'Complete Employee T&A with Geofencing, Shifts, Penalties, Overtime, Kiosk, Dashboard & Payroll Export',
     'description': """
@@ -77,6 +77,8 @@ Integrates natively with Odoo's hr.attendance module for full payroll compatibil
         'views/portal_report_templates.xml',
         'views/kiosk_templates.xml',
         'views/kiosk_nfc_templates.xml',
+        # Wizards
+        'wizard/clock_nfc_enrollment_views.xml',
     ],
     'assets': {
         'web.assets_frontend': [