Extending Interfaces

interface Animal {
	name: string
}

interface Dog extends Animal {
	breed: string
}

// Dog has both name and breed
const dog: Dog = { name: 'Rex', breed: 'German Shepherd' }

1. Create a Timestamps interface with createdAt: Date and updatedAt: Date
2. Create an Entity interface that extends Timestamps and adds id: string
3. Create User and Product interfaces that extend Entity with their own fields (name/email and name/price)
4. Create an AuditLog interface that extends Timestamps (not Entity) with action: string and userId: string
5. Create sample user, product, log, and entity values and export them by name

Completion criteria

• Named exports: user, product, log, entity
• user / product include id, timestamps (Date), and their own fields
• log has timestamps plus action / userId (no id required)
• entity has id plus createdAt / updatedAt as Dates