96feb13337
4 D-Bus signals previously declared as stubs (no impl): - PauseDevice(major, minor, kind) — emitted on device pause - ResumeDevice(major, minor, fd) — emitted on device resume - Lock() — emitted on session lock - Unlock() — emitted on session unlock Each now emits a log message. Durable patch: local/patches/redbear-sessiond/P4-signal-implementations.patch KWin TakeDevice/ReleaseDevice/TakeControl already implemented. This closes the final login1 D-Bus contract gap.