lanceyq 124aa9fef8 docs: overhaul README and add project documentation assets ...

- Rewrite README.md and README_CN.md with comprehensive project documentation
  including core features, architecture overview, benchmarks, tech stack,
  quick start guide, and detailed installation instructions
- Add CONTRIBUTING.md with contribution guidelines
- Add architecture.svg and directory-structure.svg diagrams
- Add generated PNG assets for hero banner, core features, pain points,
  architecture, and benchmark results
- Add screenshot PNGs for installation guide (PostgreSQL, Neo4j, Alembic,
  API docs, frontend UI)
- Replace external GitHub image URLs with local asset references

2026-05-06 10:31:33 +08:00

59 KiB

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