Preserve open provenance disclosures

Authored-By: Codex (GPT-5) <noreply@openai.com>

tests/bin/curl

@@ -62,7 +62,8 @@ printf '%s\n' "${PR_BODY}" | awk '
       next
     }
     if (lower ~ /^[ ]{0,3}<details([[:blank:]>])/) {
-      print "<details>"
+      if (lower ~ /[[:blank:]]open([[:blank:]=>]|$)/) print "<details open=\"\">"
+      else print "<details>"
       next
     }
     if (line ~ /^## Tracking[[:space:]]*$/) print "<h2>Tracking</h2>"