feat(pi-status): integrate desktop status bridge

Expose the persistent Pi session controls through the desktop launcher, Noctalia, and user service.

.local/bin/pi-status-ui

@@ -0,0 +1,4 @@
+#!/bin/sh
+# The opaque release window runs natively on Wayland; disable WebKit DMABUF,
+# which is unreliable with this NVIDIA desktop's compositor path.
+exec env WEBKIT_DISABLE_DMABUF_RENDERER=1 "$HOME/projects/pi-gui/ui/src-tauri/target/release/pi-status-ui" "$@"

.local/share/noctalia/plugins/pi-status-bridge

@@ -0,0 +1 @@
+../../../../projects/pi-gui/noctalia-v5-plugin/pi-status-bridge