20-task TDD plan for the NFC clock kiosk feature spec'd in
2026-05-13-nfc-clock-kiosk-design.md. Bite-sized steps with full code
in each, ordered: data model -> config -> backend endpoints ->
SCSS+template -> JS state machine -> NFC + camera -> Enroll Mode ->
debug shortcut -> version bump.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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