PlantAI-rag-new 首次提交：文献知识工作台

- BFF 薄适配层（FastAPI，8090）：QA 代理/SSE 中继/Neo4j 直连/抽取代理/会话持久化
- Vue3 前端：五相位检索流水线、文献来源与证据链、知识图谱、提取任务四 tab
- 四档响应式（桌面/笔记本/平板/手机）、深浅主题
- 81 个 FR 全部实现，测试追溯矩阵 81/81，后端 121 测/前端 156 测
- 真实凭据已脱敏，运行时配置在 backend/.env（不入 git）

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "plantai-rag-new-frontend",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview",
+    "test": "vitest run"
+  },
+  "dependencies": {
+    "vue": "3.5.13",
+    "pinia": "2.3.0",
+    "markdown-it": "14.1.0",
+    "dompurify": "3.2.3"
+  },
+  "devDependencies": {
+    "vite": "5.4.11",
+    "@vitejs/plugin-vue": "5.2.1",
+    "vitest": "2.1.8",
+    "@vue/test-utils": "2.4.6",
+    "jsdom": "25.0.1"
+  }
+}