Family Token List Item Morph to Send Screen Transition

When a user taps a token from the list, the selected item morphs into a compact, centered token selector badge. The remaining list items fade and slide out of view. Simultaneously, a numeric keypad slides up from the bottom, and the transaction amount ($0) scales and fades into the center. Tapping the token badge reverses this animation, gracefully sliding the keypad away and restoring the full token list with a subtle staggered spring effect.