Migrate all 4 sites to blocking `tractor.to_actor.run()` (#477
removal),
- rename the two API-named tests to `test_to_actor_run_*`
(`same_func_in_child`, `can_skip_parent_main_inheritance`) —
they exercise the same spawn / `inherit_parent_main` path via
the successor API.
- the recursive `spawn()` helper drops its white-box
`an._children` / portal-`_peers` asserts (which probed
`run_in_actor`'s portal + nursery-tracking internals);
`to_actor.run()` returns the result and reaps internally, so
keep the user-facing `result == 10` check.
- `test_most_beautiful_word` drops the 2nd `wait_for_result()`
(the legacy result-cache re-fetch) — `to_actor.run()` delivers
the value once, no cache.
Suite: 9 passed.
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Gud Boi
dfa2be7078