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>

files/console/usr/bin/bc250-gfn-install

@@ -1,27 +0,0 @@
-#!/usr/bin/env bash
-# First-boot installer for the GeForce NOW native Linux app (beta).
-# GFN ships from NVIDIA's own flatpak repo, not Flathub, so the
-# default-flatpaks module can't handle it. Retries while the network
-# settles; stamps /var/lib/bc250/.gfn-installed on success so the
-# service never runs again.
-
-STAMP_DIR="/var/lib/bc250"
-STAMP="$STAMP_DIR/.gfn-installed"
-REPO_URL="https://international.download.nvidia.com/GFNLinux/flatpak/geforcenow.flatpakrepo"
-
-[ -f "$STAMP" ] && exit 0
-
-for attempt in $(seq 1 30); do
-    if flatpak remote-add --if-not-exists --system GeForceNOW "$REPO_URL" \
-       && flatpak install --system --noninteractive -y GeForceNOW com.nvidia.geforcenow; then
-        mkdir -p "$STAMP_DIR"
-        touch "$STAMP"
-        echo "GeForce NOW installed."
-        exit 0
-    fi
-    echo "GeForce NOW install attempt $attempt failed; retrying in 60s..."
-    sleep 60
-done
-
-echo "GeForce NOW install failed after 30 attempts; will retry next boot." >&2
-exit 1

files/console/usr/lib/systemd/system/bc250-gfn-install.service

@@ -1,13 +0,0 @@
-[Unit]
-Description=Install GeForce NOW flatpak (NVIDIA repo, first boot)
-Wants=network-online.target
-After=network-online.target flatpak-add-fedora-repos.service
-ConditionPathExists=!/var/lib/bc250/.gfn-installed
-
-[Service]
-Type=oneshot
-ExecStart=/usr/bin/bc250-gfn-install
-TimeoutStartSec=45min
-
-[Install]
-WantedBy=multi-user.target

files/console/usr/share/applications/geforce-now-web.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Name=GeForce NOW
+Comment=NVIDIA cloud gaming in the browser (the native app requires hardware video decode this GPU does not have)
+Exec=flatpak run org.chromium.Chromium --app=https://play.geforcenow.com/
+Icon=input-gaming
+Terminal=false
+Categories=Game;
+StartupNotify=true

files/console/usr/share/doc/bc250-console/OPERATIONS.md

@@ -110,7 +110,10 @@ high clocks. Change one thing at a time and re-check `sensors`.
 - Minecraft: open Prism Launcher, add an account (Microsoft sign-in — a paid
   Minecraft: Java Edition license on that account), then create an instance
   for the version/modpack you want. Prism downloads its own Java.
-- GeForce NOW (beta) installs itself on first boot with internet. The BC-250
-  has no hardware video decode, so the stream decodes on the CPU: keep it at
-  1080p (higher settings will stutter and run hot). If it's missing, check
-  `systemctl status bc250-gfn-install` — it retries on the next boot.
+- GeForce NOW: use the "GeForce NOW" app (a Chromium web shortcut). The
+  native GFN app cannot work on this GPU — it requires hardware video
+  decode (error 0xC0F11312) that the BC-250 physically lacks. Streams
+  decode on CPU: keep to 1080p.
+- Moonlight (installed): streams games from a home PC/server running
+  Sunshine — pair it against the host's `https://<host>:47990` panel.
+  Best-quality "cloud" gaming in the house: LAN latency, no subscription.