feat(fusion_clock): NFC kiosk attendance fields + activity-log selections

- Add 'nfc_kiosk' to x_fclk_clock_source selection on hr.attendance
- Add x_fclk_check_in_photo and x_fclk_check_out_photo Binary fields (attachment=True)
- Add 'card_enrollment' and 'unknown_card_tap' to activity log log_type selection
- Add 'nfc_kiosk' to activity log source selection
- Add TestNfcAttendanceFields test class (3 tests); all 6 fusion_clock tests pass

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_clock/models/clock_activity_log.py

@@ -34,6 +34,8 @@ class FusionClockActivityLog(models.Model):
             ('correction_request', 'Correction Request'),
             ('ip_fallback', 'IP Fallback Used'),
             ('streak_milestone', 'Streak Milestone'),
+            ('card_enrollment', 'Card Enrollment'),
+            ('unknown_card_tap', 'Unknown Card Tap'),
         ],
         string='Log Type',
         required=True,
@@ -72,6 +74,7 @@ class FusionClockActivityLog(models.Model):
             ('backend_fab', 'Backend FAB'),
             ('kiosk', 'Kiosk'),
             ('system', 'System (Cron)'),
+            ('nfc_kiosk', 'NFC Kiosk'),
         ],
         string='Source',
     )