feat: 更新数据库填充器以支持开发环境的管理员和玩家数据填充，新增示例钱包余额配置

database/seeders/DevPlayerAndWalletSeeder.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace Database\Seeders;
+
+use App\Models\Player;
+use App\Models\PlayerWallet;
+use Illuminate\Database\Seeder;
+
+/**
+ * 【本地演示】写入一条玩家 + 彩票钱包（NPR）。
+ * 配合 `Bearer dev:{players.id}` 与 `/api/v1/wallet/balance` 调试。
+ *
+ * fixed site_code + site_player_id 便于之后在 JWT / 脚本里对上号（非生产数据）。
+ */
+class DevPlayerAndWalletSeeder extends Seeder
+{
+    public function run(): void
+    {
+        $currency = strtoupper(config('lottery.default_currency', 'NPR'));
+
+        $player = Player::query()->updateOrCreate(
+            [
+                'site_code' => 'demo',
+                'site_player_id' => 'demo-player-001',
+            ],
+            [
+                'username' => 'demo_player',
+                'nickname' => 'Demo Player',
+                'default_currency' => $currency,
+                'status' => 0,
+            ],
+        );
+
+        PlayerWallet::query()->updateOrCreate(
+            [
+                'player_id' => $player->id,
+                'wallet_type' => 'lottery',
+                'currency_code' => $currency,
+            ],
+            [
+                /** 最小货币单位整数：示例 125000，仅演示；可由 .env 覆盖 */
+                'balance' => (int) env('DEV_SEED_WALLET_BALANCE_MINOR', 125_000),
+                'frozen_balance' => (int) env('DEV_SEED_WALLET_FROZEN_MINOR', 0),
+                'status' => 0,
+                'version' => 0,
+            ],
+        );
+    }
+}