feat: 重构代码架构 + 新增报表/跟单/输赢统计功能

- 拆分 HomeController → TransactionController, ReportWebController, FollowPlanController
- 新增 Service 层: TransactionService, ReportService, FollowPlanService
- pk10.php JS 抽离为 4 个独立文件 (sound/race/bet/poll)
- 前台新增报表查询页面 (/report) + 跟单计划页面 (/follow-plan)
- 后台新增跟单计划管理 + 用户输赢明细统计
- 封盘状态显示倒计时 (x:xx)
- 音效仅在开奖弹窗打开时播放
- 路由按模块分组整理
- autoload 支持 App\Services 命名空间

App/Controllers/Admin/WaterController.php

@@ -13,7 +13,8 @@ class WaterController extends AdminBaseController {
         $gameId = $this->getGameId();
         $configs = $this->db->select('water_control', '*', ['game_id' => $gameId]);
         $limits = $this->db->select('bet_limits', '*', ['game_id' => $gameId]);
-        $this->render('Admin/water_control.php', compact('configs', 'limits', 'gameId'));
+        $targetProfitRate = \App\Core\SettingsHelper::get('target_profit_rate');
+        $this->render('Admin/water_control.php', compact('configs', 'limits', 'gameId', 'targetProfitRate'));
     }
 
     public function updateWater() {
@@ -61,6 +62,26 @@ class WaterController extends AdminBaseController {
         $this->json(['status' => 'success']);
     }
 
+    public function updateProfitRate() {
+        $this->checkLogin(); $this->checkAdmin();
+        $data = json_decode(file_get_contents('php://input'), true);
+        $rate = isset($data['target_profit_rate']) ? floatval($data['target_profit_rate']) : 15;
+        if ($rate < 0 || $rate > 100) {
+            $this->json(['status' => 'error', 'message' => '盈利率必须在0-100之间']);
+            return;
+        }
+
+        $db = $this->db;
+        $existing = $db->get('system_settings', 'id', ['setting_key' => 'target_profit_rate']);
+        if ($existing) {
+            $db->update('system_settings', ['setting_value' => (string)$rate], ['id' => $existing]);
+        } else {
+            $db->insert('system_settings', ['setting_key' => 'target_profit_rate', 'setting_value' => (string)$rate]);
+        }
+        \App\Core\SettingsHelper::clearCache();
+        $this->json(['status' => 'success']);
+    }
+
     private function getGameId(): int {
         if (!empty($_GET['game_id'])) return (int)$_GET['game_id'];
         return (int)($this->db->get('games', 'id', ['code' => 'pk10']) ?: 0);