Add customer entity
Add customer service
Add sample customer data
Add list of customers
Add customer creation page
Add customer details page

Allow changing the address and telephone number
Use unique serial version UID
Add prescription entity
Add dummy prescription
Add prescription service
Add list of all prescriptions
Allow prescription creation from customer page
Make prescription creation more consistent
Check customer base before populating sample data
Show prescriptions for customer
Rename status transition exception for reuse
Add prescription state enum
Implement conditional proceedability
Use correct state name
Add state to prescription