4.1 - AI Semantic Duplication Detection

Task ID: 4.1
Phase: 4
Description: Detect semantically equivalent claims to prevent duplication.
Deliverables:
- Embedding service
- Similarity scoring
- Rejection hints
Dependencies: 3.5
Estimated Hours: 220
Start Hour: 1781
End Hour: 2000
Bounty (VSP): 4100000