Overhaul TUI navigation, quit handling, and scoreboard tags

- Replace [esc][esc] quit with [q] quit globally (immediate on login,
  confirmation prompt elsewhere)
- [esc] is now consistently "back": signup→login, lobby→log out (with
  confirm), in-room host→leave (with confirm), in-room guest→leave
- Extract ConfirmScreen to shared screens/confirm.py
- Move dealer Ⓓ indicator to bottom-left corner of player box border
- Scoreboard now tags OUT (went out first) and ⭐ (lowest score)
- Send finisher_id and player id in round_over server message
- Room code moved inside in-room section with amber border
- Lobby title uses branded ⛳🏌️ GolfCards.club ♠♥♣♦
- Amber borders and dark green backgrounds on login/lobby containers
- Deck preview renders actual card-back shapes (▓▒▓/▒▓▒)
- Help/standings panels close only with [esc], hint updated
- Game footer: s[⇥]andings [h]elp on left, [q]uit on right

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/main.py

@@ -756,7 +756,7 @@ async def broadcast_game_state(room: Room):
         # Check for round over
         if room.game.phase == GamePhase.ROUND_OVER:
             scores = [
-                {"name": p.name, "score": p.score, "total": p.total_score, "rounds_won": p.rounds_won}
+                {"id": p.id, "name": p.name, "score": p.score, "total": p.total_score, "rounds_won": p.rounds_won}
                 for p in room.game.players
             ]
             # Build rankings
@@ -765,6 +765,7 @@ async def broadcast_game_state(room: Room):
             await player.websocket.send_json({
                 "type": "round_over",
                 "scores": scores,
+                "finisher_id": room.game.finisher_id,
                 "round": room.game.current_round,
                 "total_rounds": room.game.num_rounds,
                 "rankings": {