Feature Request: Option to play remaining hands in PvP after victory

## Feature Request: Option to play remaining hands in PvP after victory

### Problem Description
Currently, in PvP Mode, the round concludes immediately once a player reaches the target score. This creates a disadvantage for specific build types:
* **Economy:** Players lose the "$1 per remaining hand" bonus.
* **Scaling:** Scaling Jokers (e.g., *Runner*, *Green Joker*, *Burnt Joker*) cannot be triggered with the remaining hands/discards.
* **Utility:** Card-generating effects or "on play" triggers are cut short.

### Proposed Solution
Allow the winning player to finish their remaining hands and discards, even after the target score is met.
* The win/loss state for the round is already determined.
* This would align the PvP experience with the strategic depth of the single-player Boss Blinds.

### Implementation Idea
Once the score is reached, do not trigger the "Round Over" screen immediately. Instead, let the UI remain active until all hands are played or the player chooses to "End Round" manually.