重构生命周期演示：支持可中断回放

[estelledc]

What changed

• Upgrade Jason Design System to 2.2.
• Make the lifecycle replay restartable instead of disabling the action.
• Preserve immediate output and reduced-motion completion.
• Tighten pointer, press and motion contracts.

Why

Repeated learning actions must remain responsive and recover cleanly when interrupted.

Validation

• make verify-showcase
• JavaScript syntax check
• browser replay, restart and reduced-motion checks
• shared motion audit and git diff --check