NODE_ENV=production PORT=3000 DATABASE_URL=postgres://coffeechat:change-me@db:5432/coffeechat JWT_SECRET=replace-with-at-least-32-random-characters WECHAT_APP_ID=wx386640f47786131f WECHAT_APP_SECRET=replace-with-wechat-app-secret ADMIN_TOKEN=replace-with-a-long-random-admin-token PUBLIC_BASE_URL=https://coffeechat.example.com