Stage script: use node instead of jq

The Gitea runner's container image has node but no jq, so the first dev deploy
died with exit 127 in stage-pages-site.sh. Same behaviour, tested against mock
servers for: other channel published, 200-with-HTML, 404, and unreachable.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01JdMNbY5hLR7FjtfEE712xG

.github/scripts/stage-pages-site.sh

@@ -22,8 +22,9 @@ cp site/index.html site/404.html site/_headers "$out/"
 name="$(basename "$apk")"
 cp "$apk" "$out/$channel/$name"
 cp "$apk" "$out/$channel/ProLibertateGames.apk"
-jq -n --arg tag "$tag" --arg name "$name" --arg ch "$channel" --arg url "$base/$channel/$name" \
-  '{tag: $tag, apkName: $name, apkUrl: $url, channel: $ch}' > "$out/$channel/latest.json"
+# node rather than jq: the Gitea runner's image has node but not jq.
+node -e 'console.log(JSON.stringify({tag: process.argv[1], apkName: process.argv[2], apkUrl: process.argv[3], channel: process.argv[4]}, null, 2))' \
+  "$tag" "$name" "$base/$channel/$name" "$channel" > "$out/$channel/latest.json"
 
 # PLG_SKIP_OTHER=1 is for the very first deploy, when the site does not exist
 # yet and the domain answers 403 (Cloudflare error 1014) instead of 404.
@@ -47,13 +48,12 @@ fi
 if [ "$code" = 404 ]; then
   echo "No $other channel published yet; skipping."
   rm -rf "$out/$other"
-elif [ "$code" = 200 ] && ! jq -e .apkName "$out/$other/latest.json" >/dev/null 2>&1; then
+elif [ "$code" = 200 ] && ! other_name="$(node -p 'const j = JSON.parse(require("fs").readFileSync(process.argv[1], "utf8")); if (!j.apkName) process.exit(1); j.apkName' "$out/$other/latest.json" 2>/dev/null)"; then
   # A 200 that is not our JSON: Pages without a 404.html answers unknown paths
   # with index.html. Nothing is published on that channel.
   echo "No $other channel published yet (200 but no latest.json); skipping."
   rm -rf "$out/$other"
 elif [ "$code" = 200 ]; then
-  other_name="$(jq -er .apkName "$out/$other/latest.json")"
   curl -fsS -o "$out/$other/$other_name" "$base/$other/$other_name"
   cp "$out/$other/$other_name" "$out/$other/ProLibertateGames.apk"
 else