Add final results modal, active rules display, and UI improvements

- Add big final results modal at game end with rankings and share button
- Add active rules bar showing enabled variants during gameplay
- Increase spacing between player cards and opponents row
- Add Wolfpack bonus rule (2 pairs of Jacks = -5 pts)
- Change joker options to radio buttons (None/Standard/Lucky Swing/Eagle-Eye)
- Update Eagle-Eye jokers: +2 pts unpaired, -4 pts paired
- Add card flip animation on discard pile
- Redesign waiting room layout with side-by-side columns
- Style card backs with red Bee-style diamond crosshatch pattern
- Compact standings panel to show top 4 per category
- Various CSS polish and responsive improvements

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -74,7 +74,6 @@ When a player reveals all 6 cards, others get one final turn. Lowest score wins.
 
 ### Point Modifiers
 - `super_kings` - Kings worth -2 (instead of 0)
-- `lucky_sevens` - 7s worth 0 (instead of 7)
 - `ten_penny` - 10s worth 1 (instead of 10)
 - `lucky_swing` - Single Joker worth -5
 - `eagle_eye` - Paired Jokers score -8
@@ -86,11 +85,10 @@ When a player reveals all 6 cards, others get one final turn. Lowest score wins.
 - `tied_shame` - +5 penalty for tied scores
 - `blackjack` - Score of exactly 21 becomes 0
 
-### Gameplay Twists
+### Gameplay Options
 - `flip_on_discard` - Must flip a card when discarding from deck
-- `queens_wild` - Queens match any rank for pairing
-- `four_of_a_kind` - 4 of same rank in grid = all score 0
 - `use_jokers` - Add Jokers to deck
+- `eagle_eye` - Paired Jokers score -8 instead of canceling
 
 ## Development