- Added departments ManyToMany field to Document model
- Implemented department selection in document create/edit modals
- Added automatic notification creation for all department employees
- Fixed document filtering to include uploaded documents in 'My Documents'
- Fixed acknowledgements API to include department recipients
- Added bulk notification support with configurable threshold
- Removed acknowledge button, added visual highlighting for unread documents
- Implemented server-side acknowledgment flow with redirect to file
- Fixed mobile responsive layout for document actions
- Removed temporary test files and documentation
- Add birth_date, created_at/updated_at to Employee; remove username field
- Introduce EmployeeAction for tracking HR events and is_actually_active/status properties
- Create BotSubscriber model (OneToOne relation) for TG/WA binding
- Implement Aiogram-based Telegram bot:
• request contact to bind by phone or @username
• department selection keyboard from DEPARTMENTS dict
• async ORM via sync_to_async, custom filters for bound & active employees
- Update profile view & template:
• show “Bind Telegram/WhatsApp” button only when not already bound
• preview avatar on upload
- Remove registration tokens in favor of contact-based auth
- Clean up templates, forms and add avatar validation mixin
