fix: 增强配置发布校验与关闭玩法清理提示

1. 发布赔率、玩法配置和风控封顶草稿前校验空配置、重复项、金额范围和合法性
2. 限制赔率返水与佣金比例在 0 到 1 之间
3. 投注预览和下单遇到已关闭玩法时返回需清理注项明细

app/Services/Config/PlayConfigStreamService.php

@@ -10,6 +10,7 @@ use App\Models\PlayConfigItem;
 use App\Models\PlayConfigVersion;
 use Illuminate\Support\Facades\DB;
 use App\Lottery\ConfigVersionStatus;
+use Illuminate\Validation\ValidationException;
 use Illuminate\Contracts\Pagination\LengthAwarePaginator;
 
 /** 后台：玩法配置版本（{@see play_config_versions} / {@see play_config_items}） */
@@ -113,6 +114,7 @@ final class PlayConfigStreamService
 
     public function publish(PlayConfigVersion $draft, AdminUser $admin, ?Request $request = null): void
     {
+        $this->validatePublishableDraft($draft);
         $before = $this->snapshotVersion($draft);
 
         DB::transaction(function () use ($draft, $admin): void {
@@ -178,4 +180,51 @@ final class PlayConfigStreamService
             'items_count' => $v->items()->count(),
         ];
     }
+
+    private function validatePublishableDraft(PlayConfigVersion $draft): void
+    {
+        $items = $draft->items()->orderBy('play_code')->get();
+        $allowedPlayCodes = array_fill_keys(
+            PlayType::query()->pluck('play_code')->all(),
+            true,
+        );
+
+        $errors = [];
+        $seenPlayCodes = [];
+
+        if ($items->isEmpty()) {
+            $errors['items'][] = '草稿至少需要一条玩法配置';
+        }
+
+        foreach ($items as $index => $row) {
+            $playCode = (string) $row->play_code;
+            $minBet = (int) $row->min_bet_amount;
+            $maxBet = (int) $row->max_bet_amount;
+
+            if (! isset($allowedPlayCodes[$playCode])) {
+                $errors["items.$index.play_code"][] = '玩法不存在';
+            }
+
+            if (isset($seenPlayCodes[$playCode])) {
+                $errors["items.$index.play_code"][] = '玩法重复';
+            }
+            $seenPlayCodes[$playCode] = true;
+
+            if ($minBet < 0) {
+                $errors["items.$index.min_bet_amount"][] = '最小下注额不能小于 0';
+            }
+
+            if ($maxBet < 0) {
+                $errors["items.$index.max_bet_amount"][] = '最大下注额不能小于 0';
+            }
+
+            if ($maxBet < $minBet) {
+                $errors["items.$index.max_bet_amount"][] = '最大下注额不能小于最小下注额';
+            }
+        }
+
+        if ($errors !== []) {
+            throw ValidationException::withMessages($errors);
+        }
+    }
 }