* fix(suspend): delay keyboard restart to 6s for USB re-enumeration
The 2s delay is enough for the speech engine, but USB devices
re-enumerate slowly after resume. At T+2s, stale /dev/input nodes
still exist and evdev opens them, but the kernel tears them down
at ~T+4s, causing another round of disconnections.
Split the reinit into two separate timers:
- 2s: speech engine reinit (unchanged)
- 6s: keyboard backend restart (after USB re-enumeration completes)
* fix(suspend): use inotify to detect device settle before keyboard restart
Replace hard-coded 6s keyboard restart delay with event-driven
Gio.File.monitor_directory() on /dev/input. After resume, a 2s settle
timer resets on each inotify event; keyboard shortcuts restart only once
devices stop changing. A 10s safety cap and a 6s fallback timer guard
against environments where inotify is unavailable.
After suspend/resume, evdev devices disconnect and the monitor thread
exits when all file descriptors close. The resume handler only
reinitialized the speech engine, leaving keyboard shortcuts dead.
Restart _setup_keyboard_shortcuts() in _reinit_after_resume() to
re-scan /dev/input and open fresh device file descriptors.
* feat(suspend): add D-Bus based suspend/resume handler
Monitors org.freedesktop.login1.Manager.PrepareForSleep via Gio.DBusProxy to detect system suspend/resume. On resume, invokes a callback to reinitialize the audio pipeline and speech model so dictation works immediately without manual intervention.
Fixes#367
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* feat(suspend): wire suspend handler into tray indicator and recognition manager
TrayIndicator now creates a SuspendHandler on startup that listens for D-Bus PrepareForSleep signals. On suspend, active recognition is stopped. On resume, a 2-second delay allows audio hardware to stabilize before reinitializing the speech engine and resetting audio reconnection state.
Fixes#367
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
---------
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
