Stack Plan

• Runtime: Node.js 20 LTS
• API: Express 4 — routes → controllers → services → models
• ORM: Sequelize 6 + mysql2 (MySQL 8) / sqlite3 (tests)
• Auth: JWT access + refresh, bcrypt cost 10, tenant_id en claims
• Frontend: HTML/CSS/JS estático, Drawflow CDN, theme Corporate Light
• Docs: Swagger /api-docs, OpenAPI JSON, DBML
• Deploy: Docker Compose backend-only + MySQL 8