fix: center trick pile; add error boundary (surface post-buy crash)

- Trick area: smaller offsets (±50/52) + retuned scale so the played pile sits
  centered in the felt instead of flung out to the side seats.
- ErrorBoundary around screens + overlays: a render error now shows a recoverable
  in-app message with the cause (and logs componentStack) instead of the browser's
  blank "page couldn't load" — helps pinpoint the post-purchase crash.

Verified: tsc + next build clean; web rebuilt on :1500.

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

src/app/page.tsx

@@ -21,6 +21,7 @@ import { NotificationToaster } from "@/components/online/NotificationToaster";
 import { ResumeGameBar } from "@/components/online/ResumeGameBar";
 import { CelebrationOverlay } from "@/components/online/CelebrationOverlay";
 import { MusicToggle } from "@/components/online/MusicToggle";
+import { ErrorBoundary } from "@/components/ErrorBoundary";
 import { PublicProfileModal } from "@/components/online/PublicProfileModal";
 import { CapacitorBack } from "@/components/CapacitorBack";
 import { useSessionStore } from "@/lib/session-store";
@@ -193,13 +194,15 @@ export default function Page() {
     // reducedMotion="user" makes every Framer Motion animation honor the OS
     // "reduce motion" accessibility setting (coin rain, confetti, count-ups…).
     <MotionConfig reducedMotion="user">
-      {renderScreen(screen)}
-      <DailyRewardModal />
-      <NotificationToaster />
-      <ResumeGameBar />
-      <CelebrationOverlay />
-      <MusicToggle />
-      <PublicProfileModal />
+      <ErrorBoundary>
+        {renderScreen(screen)}
+        <DailyRewardModal />
+        <NotificationToaster />
+        <ResumeGameBar />
+        <CelebrationOverlay />
+        <MusicToggle />
+        <PublicProfileModal />
+      </ErrorBoundary>
       <CapacitorBack />
       {loading && null}
     </MotionConfig>

src/components/ErrorBoundary.tsx

@@ -0,0 +1,45 @@
+"use client";
+
+import React from "react";
+
+/**
+ * Catches React render errors so a crash shows a recoverable in-app message
+ * (with the cause) instead of the browser's blank "page couldn't load" screen.
+ */
+export class ErrorBoundary extends React.Component<
+  { children: React.ReactNode },
+  { error: Error | null }
+> {
+  state: { error: Error | null } = { error: null };
+
+  static getDerivedStateFromError(error: Error) {
+    return { error };
+  }
+
+  componentDidCatch(error: Error, info: React.ErrorInfo) {
+    // Surface the real cause in the console for diagnosis.
+    console.error("[Hokm] render error:", error, info?.componentStack);
+  }
+
+  render() {
+    if (!this.state.error) return this.props.children;
+    return (
+      <div className="fixed inset-0 z-[100] grid place-items-center bg-navy-950 p-6 text-center">
+        <div className="glass rounded-3xl p-6 w-full max-w-sm">
+          <div className="text-5xl mb-2">⚠️</div>
+          <h2 className="gold-text text-xl font-black">مشکلی پیش آمد</h2>
+          <p className="text-cream/60 text-sm mt-1">برنامه به مشکل خورد؛ دوباره بارگذاری کنید.</p>
+          <pre className="mt-3 max-h-32 overflow-auto rounded-lg bg-navy-900/70 p-2 text-start text-[10px] leading-relaxed text-rose-300/80 whitespace-pre-wrap break-words">
+            {String(this.state.error?.message || this.state.error)}
+          </pre>
+          <button
+            onClick={() => window.location.reload()}
+            className="btn-gold rounded-xl px-5 py-2.5 mt-4 font-bold"
+          >
+            بارگذاری مجدد
+          </button>
+        </div>
+      </div>
+    );
+  }
+}

src/components/GameTable.tsx

@@ -65,7 +65,7 @@ export function GameTable({
   const exit = onExit ?? reset;
   const vw = useViewportWidth();
   // Pull the played-card pile inward on narrow screens so it clears the side stacks.
-  const trickScale = vw < 360 ? 0.5 : vw < 460 ? 0.6 : 1;
+  const trickScale = vw < 400 ? 0.82 : 1;
   // Smaller played cards on phones so the center pile stays clear of the side seats.
   const trickCardSize: "sm" | "md" = vw < 480 ? "sm" : "md";
   const { phase, players, hakem, trump, turn, currentTrick } = game;
@@ -410,11 +410,13 @@ function OpponentHand({
 
 /* ----------------------------- Trick area ----------------------------- */
 
+// Compact, centered cross — small magnitudes keep the played pile in the middle of
+// the felt (clear of the side seats/stacks). Each card still nudges toward its player.
 const TRICK_OFFSET: Record<Seat, { x: number; y: number }> = {
-  0: { x: 0, y: 70 },
-  1: { x: 96, y: 0 },
-  2: { x: 0, y: -70 },
-  3: { x: -96, y: 0 },
+  0: { x: 0, y: 52 },
+  1: { x: 50, y: 0 },
+  2: { x: 0, y: -52 },
+  3: { x: -50, y: 0 },
 };
 const TRICK_ENTER: Record<Seat, { x: number; y: number }> = {
   0: { x: 0, y: 260 },