feat: enhance wallet functionality and improve error handling

- Updated .env.example to include optional player site code configuration.
- Modified error messages in hall-bet-errors for better clarity.
- Improved the betting grid logic to handle invalid draw IDs and reload draws when necessary.
- Adjusted wallet components to differentiate between credit and main wallet balances, including new translations for credit-related terms.
- Enhanced wallet logs to support credit activity tracking and improved UI for displaying credit information.

.env.example

@@ -22,6 +22,9 @@ LOTTERY_API_UPSTREAM=http://127.0.0.1:8000
 # 可选：入口授权失败时返回主站（build 前设置，会打进 JS）
 # NEXT_PUBLIC_MAIN_SITE_URL=http://localhost:5173
 
+# 可选：代理玩家登录时隐式携带的站点编号（不配则后端用 LOTTERY_DEFAULT_SITE_CODE）
+# NEXT_PUBLIC_PLAYER_SITE_CODE=default_site
+
 # Reverb：本地全栈联调时取消注释，并 php artisan reverb:start；不配则走轮询
 # NEXT_PUBLIC_REVERB_APP_KEY=
 # NEXT_PUBLIC_REVERB_HOST=127.0.0.1