Package through a pinned Node, not whatever the host has

Found the real cause of "-5: ipk verify failed": ares-package's own
packaging code (ar-async/fstream/tar, last touched 2017-2019) silently
zeroes every file's mtime in the ipk when run under a sufficiently new
Node (reproduced on v25.8.1; a Node-18 container was unaffected).
Confirmed by unpacking data.tar.gz from our built ipk (every entry
1970-01-01) versus webosbrew/hyperhdr-webos-loader's real published
ipk, structurally identical to ours (web app + native service, same
control file, same ares-cli) but with genuine October 2025 timestamps.
The archive still parses fine everywhere generic tooling looks —
Python's tarfile, our own ar/tar inspection — so nothing here ever
errors. The TV's own installer is what eventually rejects it, and it
gives no hint why.

This took three rounds of elimination to isolate: root elevation
wasn't it (Homebrew Channel's own root status was "ok"), and
system-wide native-code verification wasn't it either (a real
native-service app installed fine on the same TV). Comparing our ipk
against that known-good one byte-for-byte was what surfaced the
timestamp anomaly, and rebuilding under Node 18 reproduced correct
timestamps immediately.

build.sh now runs ares-package inside a pinned node:18 container by
default, falling back to the host's Node with a warning if Docker
isn't available. Rebuilt the actual release ipk this way and
regenerated manifest.json/repo.json against its corrected hash.

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

tools/build.sh

@@ -68,17 +68,55 @@ EOF
   echo "$toolchain"
 }
 
-check_ares() {
-  command -v ares-package >/dev/null 2>&1 || cat >&2 <<'EOF'
-error: ares-package is not on PATH
+PACKAGER_NODE_IMAGE="${PACKAGER_NODE_IMAGE:-node:18-bookworm-slim}"
 
-  npm install -g @webosose/ares-cli
+check_ares() {
+  [ -f "$ROOT/node_modules/@webosose/ares-cli/bin/ares-package.js" ] && return 0
+  command -v ares-package >/dev/null 2>&1 && return 0
+  cat >&2 <<'EOF'
+error: ares-cli is not installed
+
+  npm install
 
 Then register the TV once (developer mode or the Homebrew Channel's ssh):
 
   ares-setup-device --add tv --info "{'host':'192.168.1.20','port':9922,'username':'root'}"
 EOF
-  command -v ares-package >/dev/null 2>&1
+  return 1
+}
+
+# ares-package's own packaging code (ar-async/fstream/tar, all last touched
+# around 2017-2019) silently mishandles file metadata on very new Node
+# releases: every mtime in the ipk comes out as 1970-01-01 instead of the real
+# date. The archive still parses, so nothing here errors — the TV's installer
+# is what eventually rejects it, as "ipk verify failed" with no clue why.
+# Running the same ares-cli under a pinned, known-good Node avoids the whole
+# class of bug regardless of what's on the host.
+run_ares_package() {
+  local ares_js="$ROOT/node_modules/@webosose/ares-cli/bin/ares-package.js"
+  if [ -f "$ares_js" ] && command -v docker >/dev/null 2>&1; then
+    # Arguments are host paths under $ROOT; rewrite them to the container's
+    # mount point since nothing outside $ROOT is visible in there.
+    local args=() a
+    for a in "$@"; do
+      args+=("${a/#$ROOT//src}")
+    done
+    docker run --rm \
+      --volume "$ROOT:/src" \
+      --workdir /src \
+      --user "$(id -u):$(id -g)" \
+      --env HOME=/tmp \
+      "$PACKAGER_NODE_IMAGE" \
+      node /src/node_modules/@webosose/ares-cli/bin/ares-package.js "${args[@]}"
+    return
+  fi
+  if [ -f "$ares_js" ]; then
+    say "warning: no docker, running ares-package on the host's own Node ($(node --version 2>/dev/null))"
+    say "         if the ipk fails to install with a vague error, re-run with docker installed"
+    node "$ares_js" "$@"
+    return
+  fi
+  ares-package "$@"
 }
 
 build_native() {
@@ -132,7 +170,7 @@ package() {
   step "Packaging"
   mkdir -p "$OUT_DIR"
   rm -f "$OUT_DIR"/${APP_ID}_*.ipk
-  ares-package "$STAGE_APP" "$STAGE_SERVICE" -o "$OUT_DIR"
+  run_ares_package "$STAGE_APP" "$STAGE_SERVICE" -o "$OUT_DIR"
 
   local ipk
   ipk="$(ls -t "$OUT_DIR"/${APP_ID}_*.ipk | head -1)"