feat(infra): ensure DB services are running on every deploy

deploy.sh now runs docker-compose.db.yml up -d before app deployment.
Already running containers are unaffected (no-op).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ImTotem

infra/scripts/deploy.sh

@@ -2,6 +2,7 @@
 set -euo pipefail
 
 COMPOSE="docker compose --env-file .env -f infra/docker/docker-compose.yml"
+COMPOSE_DB="docker compose --env-file .env -f infra/docker/docker-compose.db.yml"
 NGINX_CONF="infra/docker/nginx.conf"
 HEALTH_PATH="/openapi.json"
 MAX_RETRIES=10
@@ -51,6 +52,9 @@ echo "=== BCSD API Blue-Green Deploy ==="
 
 check_credentials
 
+echo "0. Ensuring DB services..."
+$COMPOSE_DB up -d
+
 CURRENT=$(current_slot)
 NEXT=$(next_slot)