Backend Models

Define and structure database models with proper data integrity, relationships, and validation. When creating or modifying database model files (models/*, *.model.ts, schema.ts, schema.prisma, drizzle.config.ts). When working on ORM schemas, database table definitions, or data structure specifications. When defining model relationships, constraints, foreign keys, indexes, or validation rules. When implementing timestamps, data types, or cascade behaviors for database entities.