feat: 牛牛新增四条(炸弹)赔率配置 price_bomb

- 后台管理: Player/Agent 控制器新增接收、验证、保存
- 后台页面: player/agent 添加/编辑/列表页新增赔率字段
- 代理端: 继承/展示 price_bomb
- 预测赔率: jk/Pcapi/onlinechip 新增 bomb_forecast
- Betinfo: 新增 result==12 赔率查询

数据库需执行:
ALTER TABLE cg_user ADD COLUMN price_bomb float(5,2) NOT NULL DEFAULT 4.85 COMMENT '四条赔率' AFTER price_5n;

application/agent/controller/Agent.php

@@ -424,6 +424,7 @@ class Agent Extends Common{
 			$user_data['price_n7_n9'] = $user_info['price_n7_n9'];
 			$user_data['price_nn'] = $user_info['price_nn'];
 			$user_data['price_5n'] = $user_info['price_5n'];
+			$user_data['price_bomb'] = $user_info['price_bomb'];
 			$user_data['price_tc_n1'] = $user_info['price_tc_n1'];
 			$user_data['price_tc_n2'] = $user_info['price_tc_n2'];
 			$user_data['price_tc_n3'] = $user_info['price_tc_n3'];