Build a notification preferences onboarding step with Tailwind CSS: a matrix of event types (mentions, assignments, digests) against channels (email, in-app, Slack), each cell a toggle, with sensible defaults pre-selected and a quiet-hours row setting when notifications pause. Show a preview of what a digest email looks like beside the matrix, keep toggles keyboard-operable, and let the whole step be skipped with defaults applied.
提示词保持英文原文——直接粘贴进 Claude、Cursor、v0 或任何 AI 编程工具即可使用。