Fix installed service and launcher paths; wait for the pointer helper

The service and menu-entry templates still pointed at the old frametop/
subfolder, so the pointer helper, input relay, and settings apps couldn't
start after a clean install. The pointer helper's install step also failed
when the service was still starting after 3 s; it now waits up to 20 s and
doesn't abort the installer.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

pointer/helper/frametop-pointer.service

@@ -1,7 +1,7 @@
 # Template: the installer replaces @REPO@ with the repo path on the Frame.
 [Unit]
 Description=Frametop pointer helper: the universal 3D mouse (cursor, collision, ft_pointer driver)
-Documentation=file://@REPO@/frametop/README.md
+Documentation=file://@REPO@/README.md
 # Needs SteamVR's IPC; it starts and stops with SteamVR.
 After=steamvr.service frametop-input-relay.service
 PartOf=steamvr.service
@@ -10,7 +10,7 @@ PartOf=steamvr.service
 # Runs in the dev container (built there against its libraries). The helper process
 # lives in the container, so clean it up explicitly around distrobox enter.
 ExecStartPre=-/usr/bin/pkill -x ft-pointer
-ExecStart=%h/.local/bin/distrobox enter dev -- @REPO@/frametop/pointer/helper/build/ft-pointer
+ExecStart=%h/.local/bin/distrobox enter dev -- @REPO@/pointer/helper/build/ft-pointer
 ExecStopPost=-/usr/bin/pkill -x ft-pointer
 Restart=on-failure
 RestartSec=3

pointer/helper/run.sh

@@ -14,8 +14,10 @@ case ${1:-status} in
     "$root/scripts/sync.sh" >/dev/null
     fill_template "$root/pointer/helper/$unit" | on_frame "mkdir -p ~/.config/systemd/user && cat > ~/.config/systemd/user/$unit"
     "$frame" --host "set -e; pkill -x ft-pointer || true
-systemctl --user daemon-reload; systemctl --user enable --now $unit; sleep 3
-systemctl --user is-active $unit; tail -n 3 /dev/null; journalctl --user -u $unit --no-pager -o cat -n 3" ;;
+systemctl --user daemon-reload; systemctl --user enable --now $unit
+# It comes up once SteamVR runs (it starts with it); distrobox enter takes a few seconds.
+for i in \$(seq 20); do systemctl --user is-active --quiet $unit && break; sleep 1; done
+echo \"$unit: \$(systemctl --user is-active $unit)\"; journalctl --user -u $unit --no-pager -o cat -n 3" ;;
   uninstall) "$frame" --host "systemctl --user disable --now $unit 2>/dev/null; rm -f ~/.config/systemd/user/$unit; systemctl --user daemon-reload; echo removed" ;;
   start|stop|restart) if installed; then "$frame" --host "systemctl --user $1 $unit; systemctl --user is-active $unit"; exit; fi ;;&
   log) if installed; then "$frame" --host "journalctl --user -u $unit --no-pager -o cat -n ${2:-30}"; exit; fi ;;&