Fix: Restore missing Brave Wayland app-id flags and revert StartupWMClass

Agent-Logs-Url: https://github.com/naturallaw777/staging_alpha/sessions/ca8bd019-d5f6-42e5-bc39-1de367224ae5

Co-authored-by: naturallaw777 <99053422+naturallaw777@users.noreply.github.com>

modules/core/sovran-hub.nix

@@ -223,11 +223,13 @@ let
     export GIO_LAUNCHED_DESKTOP_FILE="/run/current-system/sw/share/applications/sovran-hub.desktop"
     brave --app=http://localhost:8937/auto-login \
           --class=sovran-hub \
+          --gtk-application-id=sovran-hub \
           --user-data-dir="$HUB_DATA" \
           --password-store=basic \
           --disable-gpu \
           --disable-features=WebRtcPipeWireCapturer \
-          --ozone-platform=wayland
+          --ozone-platform=wayland \
+          --wayland-app-id=sovran-hub
   '';
 
   # ── Hub auto-launch wrapper script ────────────────────────────────
@@ -302,7 +304,7 @@ Icon=sovran-hub
 Terminal=false
 Categories=System;
 StartupNotify=true
-StartupWMClass=brave-localhost__-Default
+StartupWMClass=sovran-hub
 X-GNOME-SingleWindow=true
 DESKTOP