fix(live): prize table reads the {place, coins} list the form writes

Iterating a list of objects as a place => amount map passed an array to
htmlspecialchars() and broke the public page; places were also marked with
emoji. Both shapes are read now, places are medal icons.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

modules/live-tournaments/views/_prizes.php

 <?php
-$prizePool = $tournament['prize_pool'] ?? '';
-$distribution = $tournament['prize_distribution'] ?? '';
-if (is_string($distribution)) {
-    $distribution = json_decode($distribution, true) ?: [];
+/**
+ * Prize table on the live page.
+ *
+ * prize_distribution is a list of {place, coins} (the manager's form writes
+ * that shape); an older {"1": 500, ...} map is read too. The previous version
+ * iterated a list of objects as if it were a map, which passed an array to
+ * htmlspecialchars() and broke the page, and it marked places with emoji.
+ */
+$prizePool = (int)($tournament['prize_pool_coins'] ?? $tournament['prize_pool'] ?? 0);
+$raw = $tournament['prize_distribution'] ?? [];
+if (is_string($raw)) $raw = json_decode($raw, true) ?: [];
+$places = [];
+foreach ((array)$raw as $k => $v) {
+    $place = is_array($v) ? (int)($v['place'] ?? 0) : (int)$k;
+    $coins = is_array($v) ? (int)($v['coins'] ?? 0) : (int)$v;
+    if ($place > 0 && $coins > 0) $places[$place] = $coins;
 }
+ksort($places);
+$maxPrize = $places ? max($places) : 0;
+$medalTone = [1 => 'var(--live-gold)', 2 => '#C9D1DC', 3 => '#D69A6B'];
 ?>
 
 <div class="prizes-display">
-    <?php if ($prizePool): ?>
+    <?php if ($prizePool > 0): ?>
         <div class="prize-total">
             <span class="prize-total-label">إجمالي الجوائز</span>
-            <span class="prize-total-value"><?= htmlspecialchars($prizePool) ?></span>
+            <span class="prize-total-value"><?= number_format($prizePool) ?></span>
         </div>
     <?php endif; ?>
 
-    <?php if (!empty($distribution)): ?>
+    <?php if (!empty($places)): ?>
         <div class="prize-podium">
-            <?php
-            $positions = ['first' => '🥇', 'second' => '🥈', 'third' => '🥉'];
-            $i = 0;
-            foreach ($distribution as $place => $prize):
-                $i++;
-                $medal = $positions[['first','second','third'][$i-1] ?? ''] ?? "#{$i}";
-                $maxPrize = max(array_values($distribution));
-                $pct = $maxPrize > 0 ? ($prize / $maxPrize) * 100 : 0;
-            ?>
+            <?php foreach ($places as $place => $coins): ?>
+                <?php $pct = $maxPrize > 0 ? ($coins / $maxPrize) * 100 : 0; ?>
                 <div class="prize-bar-item">
                     <div class="prize-bar-info">
-                        <span class="prize-medal"><?= $medal ?></span>
-                        <span class="prize-place"><?= htmlspecialchars($place) ?></span>
-                        <span class="prize-amount"><?= htmlspecialchars($prize) ?></span>
+                        <span class="prize-medal" style="color: <?= $medalTone[$place] ?? 'var(--live-border)' ?>;" aria-hidden="true">
+                            <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="9" r="6"/><path d="M8.5 14.5 7 22l5-3 5 3-1.5-7.5"/></svg>
+                        </span>
+                        <span class="prize-place">المركز <?= (int)$place ?></span>
+                        <span class="prize-amount"><?= number_format($coins) ?></span>
                     </div>
                     <div class="prize-bar-track">
                         <div class="prize-bar-fill" style="width: <?= $pct ?>%"></div>