Regression: the whole suite, lint and types (T11)

uv run pre-commit run --all-files

ruff (lint + autofix)....................................................Passed
ruff (format)............................................................Passed
pyright (type check cli).................................................Passed
pytest (cli unit tests)..................................................Passed
markdownlint (all markdown, incl. docs)..................................Passed
validate .the-loop config against schema.................................Passed

The first run failed pyright with five errors: RoomsResult.routed was still typed List[int], and pyright cannot bind a zero-argument Callable class variable. Both were fixed (List[Tuple[int, str]], and Callable[..., Any], the same shape ChannelState.publisher gets away with), and the second run passed.