Implement Blazor Frontend Features

[RondineleG]

🎯 Objective

• Create user interface
• Implement video playback
• Setup upload interface

📋 Tasks

• Create upload interface
• Implement progress tracking
• Create video listing
• Add video player
• Implement WebTorrent
• Add CDN fallback
• Create terms page
• Setup acceptance tracking

✅ Acceptance Criteria

• Upload working
• Player functional
• Terms system implemented
• Documentation complete

[RondineleG]

Divided into small tasks