docs(education): Add ET-EDU-008 Video Upload specification (ST4.3.6)
Comprehensive technical specification for multipart video upload system.
Sections:
1. Architecture Overview - Full upload flow diagram
2. Database Schema - education.videos table with JSONB metadata
3. Backend Implementation:
- storage.service.ts: S3/R2 multipart upload
- video.service.ts: Upload management & validation
- video.controller.ts: REST API endpoints
4. Frontend Implementation:
- video-upload.service.ts: Multipart upload client
- VideoUploadForm.tsx: 3-step upload UI
5. Video Processing - MVP mock + production options
6. API Reference - Complete endpoint documentation
7. Configuration - S3/R2 setup, env vars, CORS
8. Security - Access control, validation, future improvements
9. Performance - Optimization strategies
10. Testing - Manual & integration test cases
11. Monitoring - Metrics & common issues
12. Future Enhancements - Phase 2 & 3 roadmap
13. Success Metrics - Current status (89% complete)
Technical Details:
- 1,300+ lines of comprehensive documentation
- Complete code examples for all components
- Architecture diagrams (ASCII art)
- Configuration examples (S3, R2, CORS)
- Security best practices
- Production deployment guide
- Troubleshooting section
Key Features Documented:
✅ Multipart upload (5MB parts)
✅ Direct S3/R2 upload via presigned URLs
✅ Parallel upload (max 3 concurrent)
✅ Real-time progress tracking
✅ Complete metadata support
✅ Full CRUD operations
⚠️ Video processing (MVP - upgrade path documented)
Future Production Options:
- FFmpeg (self-hosted)
- AWS MediaConvert (managed)
- Cloudflare Stream (simplest)
Status: BLOCKER-003 (ST4.3) - 100% complete (6/6 tasks done)
Task: #11 ST4.3.6 - Documentación ET-EDU-008 Video Upload
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
fc3b1367cf