- Restructure CONTRIBUTING.md with comprehensive sections including code of conduct, development setup, and PR workflow
- Add detailed environment requirements table with version specifications and descriptions
- Include step-by-step backend and frontend setup instructions with database initialization
- Document code standards for both Python (Ruff, mypy) and TypeScript (Biome) with example commands
- Add conventional commits specification with type definitions and practical examples
- Provide complete PR process guide from forking through code review
- Include project structure diagram for better navigation
- Expand DISCLAIMER.md with improved formatting, tables, and clearer responsibility sections
- Add AI analysis limitations and technical constraints documentation
- Update SECURITY.md with enhanced security guidelines
- Refresh backend/env.example and frontend/.env.example with current configuration options
- Create new docs/ARCHITECTURE.md for system design documentation
- Update docs/CONFIGURATION.md, docs/DEPLOYMENT.md, docs/FAQ.md, and docs/LLM_PROVIDERS.md with improved clarity and structure
- Improve overall documentation consistency and user experience across all guides
lintsinghua