complete rule engine and booking flow

apps/edr-passenger-api/.env.example

@@ -2,12 +2,12 @@
 NODE_ENV=development
 PORT=3002
 
-# Database
+# Database (local Docker: run `pnpm dev:db` from edr-platform, then copy to .env)
 DB_HOST=localhost
 DB_PORT=5434
 DB_NAME=edr_passenger
 DB_USER=postgres
-DB_PASSWORD=
+DB_PASSWORD=postgres
 
 # JWT (provided by external auth package — placeholder only)
 JWT_SECRET=