Generate Test Data

Generate test data for [purpose]:

Data model:
[Describe or paste your schema]

I need:
- [X] valid records for happy path testing
- [X] records with edge case values
- [X] records that should fail validation

Constraints:
- [Field] must be [constraint]
- [Field] relates to [other field] by [relationship]

Output format: [JSON/SQL/factory code/etc.]

Include realistic but fake data (no real PII).