Merge claude/2

curl's raw "(6) Could not resolve host" / 404 noise leaked through on
the index.json download while the .minisig fetch was already silenced —
inconsistent and confusing. The caller's clean isError covers the
failure, so route the index download's stderr to /dev/null too.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>

scripts/source/artifacts.sh

@@ -56,7 +56,10 @@ lpFetchIndex() {
     [[ -n "$(_lpFetchTool)" ]] || { isError "lpFetchIndex: need curl or wget"; return 1; }
 
     tmp="$(mktemp -d)"; idx="$tmp/index.json"; sig="$tmp/index.json.minisig"
-    if ! _lpDownload "$base/$channel/index.json" "$idx"; then
+    # Silence the downloader's own stderr (curl's "could not resolve host" / 404
+    # noise) — the caller's clean error message covers the failure. Consistent
+    # with the .minisig fetch below.
+    if ! _lpDownload "$base/$channel/index.json" "$idx" 2>/dev/null; then
         isError "lpFetchIndex: could not download the artifact index"; rm -rf "$tmp"; return 1
     fi