Data Seeding & Fixtures Builder Generate realistic, deterministic seed data for development and testing. Seed Data Strategy Factory Functions Realistic Fixtures Deterministic Seeding Relationship Building Environment-Specific Seeds Database Reset Script Test Fixtures for E2E Tests Package.json Scripts Best Practices 1. Use factories : Reusable data generation 2. Deterministic in tests : Fixed seed values 3. Realistic fixtures : Production-like data 4. Environment-specific : Different needs per environment 5. Cleanup after tests : Avoid pollution 6. Relationship integrity : Proper foreign keys…