Convoke ability: card hint and game logs must show tapped/payed amount

Card example: [[Knight-Errant of Eos]]

It must show total convoke payment for:
1. Card hints on stack;
2. Game logs on payment. Possible inject points:
* 02:12, T9.M1: Convoke: JayDi taps Lunarch Veteran [9d0] to pay one white mana
* 02:12, T9.M1: JayDi casts Knight-Errant of Eos [ed4] from hand

Start by tracing how convoke payment amounts reach card hints and game-log messages, using Knight-Errant of Eos as the example. Check the two payment and cast-log points described in the issue, then verify that both show the total tapped or paid amount rather than only individual mana payments.

Written by the indexing model from the issue text.