CG-0MLW1JUZW1YKWEZE: Splendor layout polish pass 3 — fix dead space, sizing, and visual hierarchy

8 improvements:
1. Supply label repositioned to avoid header buttons
2. Supply tokens spread vertically (SUPPLY_Y=55, GAP=66, SUPPLY_X=875)
3. Inline prestige display in player/AI section headers
4. Reclaimed dead space (PLAYER_AREA_Y=450, tighter vertical spacing)
5. Enlarged action buttons (155x42, bold 17px font)
6. Enlarged noble requirement chips (r=11, 13px font)
7. Visual divider line between player and AI areas
8. Enlarged Take 2 circles (r=22), labels (15-17px), and Selected label (19px bold)

All 119 Splendor tests pass, build succeeds.

Author: rgardler-msft