* feat: setup secure presigned uploads and downloads
* clean up
* update lock
* Get presigned url finally working
* 557: Migrate backend to hono + ts
* chore: update Dockerfile and package.json for backend configuration
* add dev command
* remove unused packages
* Enhance backend API and frontend components for course management
- Updated CORS configuration in the backend to allow specific methods and headers.
- Refactored lesson download endpoint to use a new route for PDF downloads.
- Removed unused certificate download functionality from the lesson router.
- Updated frontend components to reflect changes in API endpoints and improve video upload functionality.
- Introduced new video upload component and adjusted video handling in lesson materials.
- Cleaned up unnecessary imports and optimized component structure for better performance.
* PR cleanups
* Enhance email configuration by adding SMTP_SENDER environment variable
- Updated docker-compose.yaml to include SMTP_SENDER.
- Modified Dockerfile to accept SMTP_SENDER as an argument.
- Updated environment schema in env.ts to define SMTP_SENDER as optional.
- Adjusted mail service to use SMTP_SENDER for the email 'from' field.
- Updated documentation to reflect the new SMTP_SENDER variable.
* Remove debug log statement from sendEmail function
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Co-authored-by: Iniubong Obonguko <iniubongobonguko2018@gmail.com>