Track Galaxy Platform and AppEngine runtime state via ScanState probes and proactively invalidate descendant variable quality on Stopped transitions so operators can detect a stopped runtime host before downstream clients read stale data and so the bridge delivers a uniform bad-quality signal instead of relying on MxAccess per-tag fan-out

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

gr/queries/hierarchy.sql

@@ -68,6 +68,8 @@ SELECT DISTINCT
          THEN 1
          ELSE 0
     END AS is_area,
+    td.category_id AS category_id,
+    g.hosted_by_gobject_id AS hosted_by_gobject_id,
     ISNULL(
         STUFF((
             SELECT '|' + tc.template_tag_name