fix: improve endgame clock and gameplay stability

internal/gameserver/handlers_gacha.go

@@ -77,9 +77,22 @@ func init() {
 		if player == nil {
 			return nil
 		}
-		// The imported banner lists target another Client. Reject draws until
-		// their pools, grants and protocol fields are verified for this Client.
-		rsp.Retcode = uint32(pb.Retcode_RET_GACHA_NOT_SUPPORT)
+		mapped, _, err := common.LoadLimitedGachaBanners()
+		if err != nil {
+			return err
+		}
+		for _, banner := range mapped {
+			if banner.GachaID == req.GachaId {
+				return drawLimitedAvatar(s, req, rsp, banner)
+			}
+		}
+		drawn, err := drawSandboxPool(s, req, rsp)
+		if err != nil {
+			return err
+		}
+		if !drawn {
+			rsp.Retcode = uint32(pb.Retcode_RET_GACHA_NOT_SUPPORT)
+		}
 		return nil
 	})