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/view/player/edit.html

@@ -180,6 +180,12 @@
             <div class="layui-input-inline">
                 <input type="text" id="price_tie_5n" autocomplete="off" class="layui-input readonly" readonly value="{$user.price_5n}">
             </div>
+            <label for="price_bomb" class="layui-form-label">押四条赔率</label>
+            <div class="layui-input-inline">
+                <input type="text" id="price_bomb" autocomplete="off" class="layui-input readonly" readonly value="{$user.price_bomb}">
+            </div>
+        </div>
+        <div class="layui-form-item">
             <label for="price_tie_dt" class="layui-form-label">{$lang['tie_odds']}</label>
             <div class="layui-input-inline">
                 <input type="text" id="price_tie_dt" autocomplete="off" class="layui-input readonly" readonly value="{$user.price_tie_dt}">