Add `loglevel` propagation to UI graphics tasks and sampler stream
opens to enable proper console logging in chart update loops. This
ensures the graphics and FSP subsystems receive the same loglevel
as their parent and/or sibling UI-actor tasks.
Deats,
- add `loglevel` param to `graphics_update_loop()` and
`increment_history_view()` with default `'warning'`.
- pass `loglevel` to `open_sample_stream()` calls in both fns.
- use `partial()` to pass `loglevel` through to `nurse.start_soon()`
calls in `display_symbol_data()` and `graphics_update_loop()`.
Also logging, doc-strs, and code-style tweaks,
- change `print()` -> `log.debug()` for hidden-chart and
interaction-pause msgs in graphics loop.
- change `log.info()` -> `log.debug()` for resize events in
`GodWidget` and `MainWindow`.
- add multiline style to resize log msg in `GodWidget`.
- add docstring to `MainWindow.on_focus_change()`.
- moar union type annot adjustments.
- switch to explicit kwarg `period_s=` for `open_sample_stream()`
in `increment_history_view()`.
- multiline style for `names` list in `open_fsp_actor_cluster()`.
- change `count=2` -> `count=len(names)` in
`open_fsp_actor_cluster()`.
- add TODO about using `.experimental` for cluster import (once that
get's patched into upstream `tractor`).
- multiline style for `or` in `FspAdmin.start_engine_task()`.
- comment-out unused `brokernames` in `ui.cli.chart()`.
- add commented breakpoint in `ui.cli.chart()`.
- fix docstring style in `OrderMode.on_submit()`.
(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code