1.优化接口/api/game/lobbyInit，新增赔率参数

app/common/library/game/StreakWinReward.php

@@ -106,6 +106,25 @@ final class StreakWinReward
         return self::$cache;
     }
 
+    /**
+     * lobbyInit 用：连胜赔率档位（与后台「连胜奖励」、派彩公式一致）。
+     *
+     * @return array{rows: list<array{streak: int, odds_factor: int, is_jackpot: bool}>}
+     */
+    public static function lobbyPayload(): array
+    {
+        $rows = [];
+        foreach (self::loadRows() as $row) {
+            $rows[] = [
+                'streak' => (int) ($row['streak'] ?? 0),
+                'odds_factor' => (int) ($row['odds_factor'] ?? 0),
+                'is_jackpot' => ($row['is_jackpot'] ?? false) === true,
+            ];
+        }
+
+        return ['rows' => $rows];
+    }
+
     /**
      * streak_at_bet 为下注时快照（0 表示尚未连胜）；档位取 min(streak_at_bet+1, 10)。
      */