- PatientModel: Convert Custodian from array to integer InternalPID when received as object
- PatientModel: Convert LinkTo from array of objects to comma-separated InternalPID string
- API docs: Add LinkedPatient, Custodian, and PatAttEntry schema definitions
- API docs: Extend Patient schema with DeathIndicator, TimeOfDeath, PatCom,
PatAtt, Province, City, Country, Race, MaritalStatus, Religion, Ethnic fields
- Add AGENTS.md to .gitignore