Replace native GFN (impossible on this GPU) with browser GFN + Moonlight

The native GeForce NOW client hard-requires Vulkan video-decode
extensions (error 0xC0F11312) and the BC-250 has no video decode
hardware — unfixable at driver level. Replaced with:
- Chromium + a GeForce NOW web-app shortcut (works on Linux Chromium
  without UA tricks nowadays; CPU-decoded 1080p)
- Moonlight client for streaming from a home Sunshine host (planned:
  VM with RTX 3050 passthrough on the R730)
Drops bc250-gfn-install service/script.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

recipes/bc250-console-gnome.yml

@@ -24,7 +24,7 @@ modules:
 
   - type: script
     snippets:
-      - chmod 0755 /usr/bin/bc250-remote-setup /usr/bin/bc250-steam-bpm-autostart /usr/bin/bc250-gfn-install /usr/bin/bc250-sunshine-autostart /usr/bin/bc250-personalize
+      - chmod 0755 /usr/bin/bc250-remote-setup /usr/bin/bc250-steam-bpm-autostart /usr/bin/bc250-sunshine-autostart /usr/bin/bc250-personalize
       - dconf update # compile the local.d/gdm.d console defaults into the dconf dbs
 
   - type: default-flatpaks@v1
@@ -40,6 +40,8 @@ modules:
         - net.retrodeck.retrodeck # RetroDECK: retro emulation
         - org.prismlauncher.PrismLauncher # Minecraft (Java; sign in with Microsoft account)
         - dev.lizardbyte.app.Sunshine # game-stream host: parent remote admin via Moonlight (RDP blocked by mutter bug on GFX1013)
+        - org.chromium.Chromium # for GeForce NOW in-browser (native GFN app needs Vulkan video decode this GPU lacks)
+        - com.moonlight_stream.Moonlight # stream games FROM the home server/PC (Sunshine hosts) to the console
 
   - type: systemd
     system:
@@ -47,7 +49,6 @@ modules:
         - cyan-skillfish-governor-smu.service
         - sshd.service
         - tailscaled.service # idle until 'sudo tailscale up'
-        - bc250-gfn-install.service # GeForce NOW beta from NVIDIA's flatpak repo (first boot)
         - bc250-personalize.service # one-time display names from /etc/bc250-console.conf
       masked:
         - hhd.service # Handheld Daemon crash-loops on BC-250