feat: add ai gateway local core flow

scripts/create-database.sh

@@ -1,7 +1,15 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-CONTAINER="${AI_GATEWAY_PG_CONTAINER:-easyai-pgvector}"
+if [[ -n "${AI_GATEWAY_PG_CONTAINER:-}" ]]; then
+  CONTAINER="$AI_GATEWAY_PG_CONTAINER"
+elif docker inspect easyai-pgvector >/dev/null 2>&1; then
+  CONTAINER="easyai-pgvector"
+elif docker inspect postgres >/dev/null 2>&1; then
+  CONTAINER="postgres"
+else
+  CONTAINER="easyai-pgvector"
+fi
 PGUSER="${AI_GATEWAY_PG_USER:-easyai}"
 DB_NAME="${AI_GATEWAY_DATABASE_NAME:-easyai_ai_gateway}"