Forfeit = 2x coin loss + 0 XP (no kot); end-of-game roster + add friend

Forfeit penalty reworked (client + server gamification, in sync):
- Surrendering team loses DOUBLE the entry coins; winner takes the stake.
- Forfeiter earns NO XP. No kot is applied or mentioned anymore.
- MatchSummary/Dto carry a `forfeit` flag; GameRoom.FinalizeForfeit →
  ApplyRewardsAsync(team) with Forfeit=true (dropped the kot path).
- Forfeit confirm dialogs now alert the real penalty (double coins, no XP).

End-of-game roster: SeatPlayerDto/ServerSeatPlayer + game-store SeatPlayer gain
userId/isBot. New <MatchPlayersList> lists everyone at the table on the final
screen (PostMatchRewardsModal + AI MatchOverlay) with a tactile "Add" button to
send a friend request to real (non-bot, non-self) players ("Sent" after).

Verified: tsc + sim + dotnet + next build clean; stack rebuilt :1500/:1505.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/lib/i18n.tsx

@@ -47,9 +47,14 @@ const fa: Dict = {
   "forfeit.title": "تسلیم",
   "forfeit.ask": "از این بازی تسلیم می‌شوید؟",
   "forfeit.teammateAsks": "{name} می‌خواهد تسلیم شود. موافقید؟",
-  "forfeit.rule": "اگر حتی یک دست برده باشید باخت عادی، وگرنه کُت می‌شوید.",
+  "forfeit.rule": "با تسلیم، دو برابر سکهٔ ورودی را از دست می‌دهید و هیچ امتیاز تجربه‌ای نمی‌گیرید.",
   "forfeit.confirm": "تسلیم",
   "forfeit.keepPlaying": "ادامه می‌دهم",
+  "match.players": "بازیکنان",
+  "match.you": "شما",
+  "match.bot": "ربات",
+  "match.addFriend": "افزودن",
+  "match.sent": "ارسال شد",
 
   "seat.you": "شما",
   "team.us": "ما",
@@ -314,9 +319,14 @@ const en: Dict = {
   "forfeit.title": "Forfeit",
   "forfeit.ask": "Surrender this match?",
   "forfeit.teammateAsks": "{name} wants to forfeit. Agree?",
-  "forfeit.rule": "Win ≥1 round = normal loss, otherwise it's a Kot.",
+  "forfeit.rule": "Forfeiting costs double your entry coins and earns no XP.",
   "forfeit.confirm": "Forfeit",
   "forfeit.keepPlaying": "Keep playing",
+  "match.players": "Players",
+  "match.you": "You",
+  "match.bot": "Bot",
+  "match.addFriend": "Add",
+  "match.sent": "Sent",
 
   "seat.you": "You",
   "team.us": "Us",