root cc3f539067 docs: add AI legal assistant system design document
- Define system architecture with FastAPI + SQLite + sqlite-vss
- Design 5 core modules: laws, analyses, cases, contracts, signatures
- Specify API design, data models, and permission system
- Outline deployment and security strategies

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-01 03:17:51 +08:00
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