Discard confirmation button stays grayed out when discarding 20 cards at cleanup (Glint-Horn Buccaneer deck) — timer expires, game lost

Category: Bug — Gameplay

Steps to reproduce:
1. Control Glint-Horn Buccaneer and reach the end-of-turn cleanup step with a very large hand (27 cards, requiring a discard of 20 cards down to maximum hand size).
2. Select the 20 required cards to discard.
3. Observe that the confirmation button remains grayed out even though the correct number of cards is selected.
4. The timer runs out completely and the game is awarded to the opponent.

Platform: Android AND PC (reproduced identically on both clients)

Actual results: With all 20 required cards selected, the confirmation button never becomes clickable. The discard cannot be validated, the timer expires, and the loss is attributed to me.

Expected results: Once the required number of cards is selected, the confirmation button becomes active, the discard resolves (triggering Glint-Horn Buccaneer 20 times), and the game continues.

Workaround: None found. The button stayed grayed out regardless of selection.

Additional context: This bug directly decided the game. I controlled Glint-Horn Buccaneer ("Whenever you discard a card, Glint-Horn Buccaneer deals 1 damage to each opponent"), so resolving the 20-card discard would have dealt 20 damage and won me the game on the spot. The issue occurring on both Android and PC suggests a game-logic or server-side problem rather than a platform-specific UI issue — possibly related to the unusually large number of discard triggers (20) that would need to go on the stack.