GraphRAG Studio — initial commit: multimodal RAG system with KG visualization

Full-stack application for document-to-knowledge-graph pipeline:
- Backend: FastAPI + LangGraph ReAct agent + DeepSeek + MinerU parsing
- Frontend: React 19 + Vite + D3.js + shadcn/ui
- Pipeline: MinerU parsing → LangExtract entity extraction → KG building

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

frontend/CLAUDE.md

@@ -0,0 +1,33 @@
+# Frontend — 开发说明
+
+## 路径
+
+```
+F:\GraphRAGAgent\frontend\
+```
+
+## 启动开发服务器
+
+```bash
+cd F:/GraphRAGAgent/frontend
+pnpm dev
+```
+
+启动后访问：http://localhost:5173
+
+## 依赖安装
+
+```bash
+cd F:/GraphRAGAgent/frontend
+pnpm install
+pnpm rebuild @tailwindcss/oxide esbuild
+```
+
+> 注意：首次安装后需执行 `pnpm rebuild @tailwindcss/oxide esbuild`，否则 Vite 构建会因原生包未编译而失败。
+
+## 构建生产包
+
+```bash
+cd F:/GraphRAGAgent/frontend
+pnpm build
+```