Trial state of 29 Oct 2026: ATOMA reader setup, app dashboards, embedding notes

Baseline before the clean-up (PD-13): the PD-11 reader setup and the PD-12 app
dashboards as they ran on the local stack, uncommitted until now. Not deployed,
not independently reviewed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

stacks/fuel-monitoring/superset/init.sh

@@ -12,3 +12,5 @@ superset init
 superset set-database-uri \
   --database_name "Fuel (Trino)" \
   --uri "trino://superset@trino:8080/fuel"
+# The role "ATOMA Reader", set to exactly its permissions (petrolyst-insights/roles/).
+/app/.venv/bin/python /app/petrolyst-roles/atoma_reader.py