Task-by-task TDD plan implementing the design spec. Splits the work into 14 tasks: helper utilities (TDD), shared renderer, CSS token migration, per-page rewrites (Inbox/All/History/Rules/Silences), wizard banner migration, AlertRow deletion, E2E adaptation for ConfirmDialog, and full verification pass. Each task produces an atomic commit. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>