- Add non-persisted plainPassword field to User entity (write-only via API)
- Remove direct write access to password field
- Update UserPasswordHasherProcessor to hash from plainPassword
- Update frontend DTO and UserDrawer component
Ticket: T-009
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add User API operations (GET, POST, PATCH, DELETE) with password
hashing processor, frontend service, drawer and admin tab.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>