优化：全站金币图标由 🪙（银灰色）统一替换为 💰（金黄色）

🪙 在多数平台/字体上渲染为银灰色，与「金币」语义不符；
💰 各平台均渲染为金黄色，更直观传达金币概念。

涉及文件（43处）：
- app/Jobs：百家乐、赛马结算广播
- app/Http/Controllers：管理员命令、红包、老虎机、神秘箱子
- app/Listeners
- resources/views：聊天室各游戏面板、商店、toolbar、后台页面等

app/Http/Controllers/AdminCommandController.php

@@ -560,7 +560,7 @@ class AdminCommandController extends Controller
             'room_id' => $roomId,
             'from_user' => '系统公告',
             'to_user' => '',
-            'content' => "🪙 <b>{$admin->username}</b>（{$positionName}）向 <b>{$targetUsername}</b> 发放了 <b>{$amount}</b> 枚奖励金币！",
+            'content' => "💰 <b>{$admin->username}</b>（{$positionName}）向 <b>{$targetUsername}</b> 发放了 <b>{$amount}</b> 枚奖励金币！",
             'is_secret' => false,
             'font_color' => '#d97706',
             'action' => '',
@@ -584,9 +584,9 @@ class AdminCommandController extends Controller
             'sent_at' => now()->toDateTimeString(),
             // 前端 toast-notification 组件识别此字段，弹出右下角通知卡片
             'toast_notification' => [
-                'title' => '🪙 奖励金币到账',
+                'title' => '💰 奖励金币到账',
                 'message' => "<b>{$admin->username}</b>（{$positionName}）向你发放了 <b>{$amount}</b> 枚金币！",
-                'icon' => '🪙',
+                'icon' => '💰',
                 'color' => '#f59e0b',
                 'duration' => 8000,
             ],

app/Http/Controllers/MysteryBoxController.php

@@ -147,11 +147,11 @@ class MysteryBoxController extends Controller
 
         if ($reward >= 0) {
             $content = "{$emoji}【开箱播报】恭喜 【{$username}】 抢到了神秘{$typeName}！"
-                . "获得 🪙" . number_format($reward) . " 金币！";
+                . "获得 💰" . number_format($reward) . " 金币！";
             $color = $box->box_type === 'rare' ? '#c4b5fd' : '#34d399';
         } else {
             $content = "☠️【黑化陷阱】haha！【{$username}】 中了神秘黑化箱的陷阱！"
-                . "被扣除 🪙" . number_format(abs($reward)) . " 金币！点背~";
+                . "被扣除 💰" . number_format(abs($reward)) . " 金币！点背~";
             $color = '#f87171';
         }
 

app/Http/Controllers/RedPacketController.php

@@ -92,7 +92,7 @@ class RedPacketController extends Controller
 
         // 货币展示文案
         $typeLabel = $type === 'exp' ? '经验' : '金币';
-        $typeIcon  = $type === 'exp' ? '✨' : '🪙';
+        $typeIcon  = $type === 'exp' ? '✨' : '💰';
         $btnBg     = $type === 'exp'
             ? 'linear-gradient(135deg,#7c3aed,#4f46e5)'
             : 'linear-gradient(135deg,#dc2626,#ea580c)';
@@ -303,7 +303,7 @@ class RedPacketController extends Controller
 
         // 在聊天室发送领取播报（所有人可见）
         $typeLabel  = $envelopeType === 'exp' ? '经验' : '金币';
-        $typeIcon   = $envelopeType === 'exp' ? '✨' : '🪙';
+        $typeIcon   = $envelopeType === 'exp' ? '✨' : '💰';
         $claimedMsg = [
             'id'         => $this->chatState->nextMessageId($roomId),
             'room_id'    => $roomId,

app/Http/Controllers/SlotMachineController.php

@@ -168,11 +168,11 @@ class SlotMachineController extends Controller
             } elseif (in_array($resultType, ['triple_gem', 'triple', 'pair'], true)) {
                 // 普通中奖：仅向本人发送聊天室系统通知
                 $net = $payout - $cost;
-                $content = "🎰 {$resultLabel}！{$e1}{$e2}{$e3} 赢得 +🪙".number_format($net).' 金币';
+                $content = "🎰 {$resultLabel}！{$e1}{$e2}{$e3} 赢得 +💰".number_format($net).' 金币';
                 $this->broadcastPersonal($user->username, $content);
             } elseif ($resultType === 'curse') {
                 // 诅咒：通知本人
-                $content = "☠️ 三骷髅诅咒！{$e1}{$e2}{$e3} 额外扣除 🪙".number_format($cost).' 金币！';
+                $content = "☠️ 三骷髅诅咒！{$e1}{$e2}{$e3} 额外扣除 💰".number_format($cost).' 金币！';
                 $this->broadcastPersonal($user->username, $content);
             }
 
@@ -243,7 +243,7 @@ class SlotMachineController extends Controller
     {
         $net = $payout - $cost;
         $content = "🎰🎉【老虎机大奖】恭喜 【{$username}】 转出三个7️⃣！"
-            .'狂揽 🪙'.number_format($net).' 金币！全服见证奇迹！';
+            .'狂揽 💰'.number_format($net).' 金币！全服见证奇迹！';
 
         $msg = [
             'id' => $this->chatState->nextMessageId(1),