Move the sanitizer next to the directory helpers so the CLI download
command and the daemon honour use_username_dirs too, not only the TUI.
Resumed downloads keep the folder they were saved with instead of
nesting the username a second time, and toggling the setting applies
to the next download without a restart. Document the config key.
Five files ran between 1.2k and 2.4k lines, and one function past the
length the quality gate allows. None of it was doing anything wrong; they
had simply accumulated until you had to scroll to hold one in your head.
The move throughout is into *child* modules rather than siblings, because
a child still sees its parent's private items. So `ClientContext` keeps
its private fields and `ServerActor` keeps its private state, while the
methods that work on them move out — no encapsulation is widened for the
sake of the split. Three `ServerActor` methods become `pub(super)`, which
is only acknowledging the calls the parent already made.
The client's operation loop and the actor's standing-message match are
split by subject: the arms move out whole, so the bodies read exactly as
they did inside. Where an arm said `continue` it now says `return` — the
match was the last thing the loop did, and none of the arms that moved
holds a loop of its own, so skipping the rest of an arm and ending its
handler are the same move.
The test modules split by topic the same way, which is most of the size:
main_tui's alone was 2.1k of the 2.4k lines.
No behaviour changes. Verified against a live server: the full e2e suite
passes, including the 98 CLI and 19 daemon-protocol cases that drive the
dispatch loop this touches.
Michel de Graaf