Three related fixes for redbear-sessiond and redbear-statusnotifierwatcher:
1. StatusNotifierWatcher: change well-known D-Bus name from
'org.freedesktop.StatusNotifierWatcher' to 'org.kde.StatusNotifierWatcher'.
Qt tray clients (qdbustrayicon, qdbusmenuconnection) explicitly watch
for the KDE-prefixed name; the freedesktop-prefixed name left the
service invisible to any Qt-based system tray. Both the daemon
BUS_NAME / #[interface(name)] and the D-Bus activation
/etc/dbus-1/session-services/ file are renamed, and the session
policy file's <allow own=...> entry is updated. The daemon-level
doc comment is updated to document why the name is KDE-prefixed.
2. sessiond: replace host-dependent can_methods_return_na test.
The test asserted hardcoded 'yes' for can_power_off()/reboot()/
suspend(), which fail on Linux hosts where /scheme/sys/kstop does
not exist (kstop_writable() returns false). Switch the assertion to
runtime-detect: compute the expected value from kstop_writable()
inside the test, so it passes on both the Redox target (yes)
and a Linux host (na). All 52 sessiond tests now pass on host.
3. sessiond: implement inhibitor lifecycle reaping.
Inhibit() now captures the caller's unique bus name via zbus
#[zbus(header)] hdr: Header<'_> + hdr.sender(). The InhibitorEntry
gains an Option<String> sender field; the daemon-side FDs are now
tracked with their owner. set_connection() spawns a background
task that subscribes to org.freedesktop.DBus.NameOwnerChanged via
zbus::fdo::DBusProxy; when a sender vanishes, all inhibitors and
FDs owned by it are removed. list_inhibitors() defensively filters
out entries with dead senders. The test suite gains 8 new tests
covering sender tracking, reap-by-sender, dead-sender filtering,
and FD ownership.
Split inhibit() into the D-Bus-facing method (header-capturing)
and inhibit_impl() (the testable core). Tests call inhibit_impl
directly with an explicit sender argument.
Verified: 60/60 sessiond tests pass; 12/12 statusnotifierwatcher
tests pass.
vasilito
4522bc39ca