Separate QuantEngine database deployment

tools/verify_quantengine_db_setup.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+DB_HOST="${DB_HOST:-127.0.0.1}"
+DB_PORT="${DB_PORT:-5432}"
+DB_USER="${DB_USER:-quantengine_app}"
+DB_NAME="${DB_NAME:-quantenginedb}"
+
+echo "Checking database availability..."
+psql "host=${DB_HOST} port=${DB_PORT} dbname=${DB_NAME} user=${DB_USER}" -Atc "select current_database(), current_schema();"
+echo "Checking core tables..."
+psql "host=${DB_HOST} port=${DB_PORT} dbname=${DB_NAME} user=${DB_USER}" -Atc "\dt quantengine.*"