feat(enakgame): filter play history by game and status

GET /customer/enakgame/sessions takes optional game_id and status, so a game
reloaded mid-play finds the session it was running (status=STARTED) instead
of starting a new one and charging EnakCoin again. An invalid game_id or
status is refused.

integration-enakgame.md §4.4 now describes recovery after a reload: keep the
session_id in sessionStorage, continue a STARTED session before expires_at,
and call complete again for a COMPLETED one to get the full answer, prize
included. The mobile guide and RFC §11 mention the filters.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/integration-mobile-customer.md

@@ -616,6 +616,9 @@ kembali", lalu tutup. Tidak perlu mengirim pesan ke game.
 
 ### 8.4 Riwayat main — `GET /customer/enakgame/sessions?page=1&limit=20`
 
+Query opsional `game_id` (riwayat satu game) dan `status` (`STARTED`, `COMPLETED`,
+`REFUNDED`, `EXPIRED`) untuk filter atau tab.
+
 ```json
 {
   "data": [