Build a cron schedule builder with Tailwind CSS: plain-language controls — a frequency select (every minute/hour/day/week/month), then dependent pickers (minute checkboxes, hour select, weekday toggles, day-of-month) — that emit a live cron expression in a monospace readout with a copy button. Show a human-readable summary under the expression ("At 09:00 on Monday"), preview the next five run times as dates, validate against impossible combinations (e.g. the 31st of February) with inline warnings, and allow direct editing of the raw expression that re-syncs the controls.
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。