Port deribit and IB `asyncio` bridge callables to the new
`to_asyncio.open_channel_from()` signature where the `LinkedTaskChannel`
is the first param and `started_nowait()` replaces the old
`to_trio.send_nowait()` sync handshake.
Deats,
- deribit `api.py`: update `aio_price_feed_relay()` and
`aio_order_feed_relay()` signatures to take `chan: LinkedTaskChannel`
as first arg; drop `from_trio`/`to_trio` params; replace
`to_trio.send_nowait()` with `chan.send_nowait()` and
`chan.started_nowait()`.
- drop `functools.partial()` wrapping in both `open_price_feed()` and
`open_order_feed()`; pass `fh=`/`instrument=` as kwargs directly.
- IB `broker.py`: same `chan` + `started_nowait()` port for
`recv_trade_updates()`.
Other styling,
- rewrap `recv_trade_updates()` docstring to 67 chars.
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Gud Boi
4bfe8d99b3