Work Plan - Strict Overflow Constraints for Pool Panel

Request

The user persists that cards overflow because they are "full size" and do not resize.

DraftView.tsx:
- Added overflow-hidden to the root poolRef div. This ensures that even if internal contents try to be larger, they are clipped, and more importantly, it forces flex children to respect the parent boundary in some browser rendering engines.
- Added min-h-0 to PoolDroppable and the inner scroll container. In Flexbox columns, children do not shrink below their content size by default. min-h-0 effectively overrides this, forcing the container to shrink to the available flex space (which is effectively poolRef height minus header).
- This combination guarantees that the scroll container's height is exactly calculated based on the parent, so h-full on the card images resolves to the correct, resized pixel value.

Visuals: Resizing the pool panel should now force the cards to shrink or grow in real-time without overflowing or getting stuck at a large size.