- Fix: /milestones?project_id= now accepts project_code (str) not just int
- Add: built-in acc-mgr user created on wizard init (account-manager role, no login, undeletable)
- Add: POST /users/{id}/reset-apikey with permission-based access control
- Add: GET /auth/me/apikey-permissions for frontend capability check
- Add: user.reset-self-apikey and user.reset-apikey permissions
- Protect admin and acc-mgr accounts from deletion
- Block acc-mgr from login (/auth/token returns 403)
- add users.role_id for one global role per account
- seed protected account-manager role with account.create permission
- default new accounts to guest role
- block admin role assignment through user management
- allow account-manager permission to create accounts
- require admin auth for user CRUD
- support editable email/full name/password/admin/active fields
- prevent self lockout and self deletion
- return clear error when related records block deletion
