No more hardcoded passwords — pulls POSTGRES_HOST, POSTGRES_USER,
POSTGRES_PASSWORD, POSTGRES_DB, and REDIS_URL from the pod's
environment (injected by k8s secrets).
- scripts/test_saved_queries.py: tests all 24 saved SQL explorer queries
against the live Trino API (all 24 pass)
- scripts/run_reclassify_and_reaggregate.sh: self-contained script to
re-classify macro events with updated prompts and re-aggregate all
tickers. Scales aggregation to 16 pods, monitors queues, scales back.