Implement several improvements to the student management system, including:
- Add `foreign_alias` and `admission_date` fields to the `Student` model.
- Implement automatic `admission_date` calculation based on `student_id` patterns.
- Enhance attendance reporting with internationalization (i18n) support and improved UI using Bootstrap components.
- Update Excel import logic to support `foreign_alias` and `admission_date` columns.
- Refine weekly schedule synchronization to respect student admission dates.
- Improve the attendance recording interface with better UX and selection controls.
- Update admin interface and templates to display new student attributes.
- Add comprehensive test cases for authentication and protected view access.
