dotenv is imported in server.ts and required at runtime, so it must be in dependencies, not devDependencies. Fixes ERR_MODULE_NOT_FOUND in Docker container. Related to BARAAA-50. Co-Authored-By: Paperclip <noreply@paperclip.ing>
Complete implementation ready for Coolify: - Node.js 22 + Fastify + socket.io backend - PostgreSQL 16 + Redis 7 services - Docker Compose configuration - Deployment scripts and documentation Co-Authored-By: Paperclip <noreply@paperclip.ing>