Match intro "players joining" loading screen + i18n fix; checkpoint

- MatchIntroOverlay: UNO-style pre-game reveal — the 4 seats animate into the
  table (with "?" placeholders until each player's data streams in for live
  matches), a 3-2-1-GO countdown, then the table shows. Wired via game-store
  matchIntroPending/consumeIntro, rendered online-only in GameScreen.
- Fix: intro.found / intro.getReady / intro.go existed only in the Persian dict;
  added the English strings (would have shown raw keys to EN users).
- Checkpoint of the in-progress UI/social batch (CoinsPill, shop titles section,
  friend-request rate limit, etc.) — all green.

Verified: tsc + next build + scripts/sim.ts + dotnet build server/Hokm.slnx all pass.

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

src/components/screens/ProfileScreen.tsx

@@ -1,10 +1,11 @@
 "use client";
 
 import { motion } from "framer-motion";
-import { Check, ChevronLeft, Coins, Crown, Eye, EyeOff, Lock, Music, Pencil, Star, Upload, Users, Volume2 } from "lucide-react";
+import { Check, ChevronLeft, Crown, Eye, EyeOff, Lock, Music, Pencil, Star, Upload, Users, Volume2 } from "lucide-react";
 import { useRef, useState } from "react";
 import { ScreenHeader, ScreenShell } from "@/components/online/ScreenHeader";
 import { RankBadge } from "@/components/online/RankBadge";
+import { CoinsPill } from "@/components/online/CoinsPill";
 import { XpBar } from "@/components/online/XpBar";
 import { Avatar } from "@/components/online/Avatar";
 import { useSessionStore } from "@/lib/session-store";
@@ -138,10 +139,7 @@ export function ProfileScreen() {
 
         <div className="mt-2 flex items-center justify-center gap-2">
           <RankBadge rating={profile.rating} showRating />
-          <span className="glass rounded-full px-2.5 py-1 text-xs font-bold text-gold-300 flex items-center gap-1">
-            <Coins className="size-3.5 text-gold-400" />
-            {profile.coins.toLocaleString()}
-          </span>
+          <CoinsPill />
         </div>
 
         <div className="mt-4">