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>

backend/pyproject.toml

@@ -0,0 +1,30 @@
+[build-system]
+requires = ["setuptools>=68"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "plantai-bff"
+version = "0.1.0"
+description = "PlantAI-rag-new BFF：上游代理 + 归一化 + 会话持久化 + Neo4j 直连"
+requires-python = ">=3.11"
+dependencies = [
+    "fastapi>=0.110",
+    "uvicorn[standard]>=0.29",
+    "httpx>=0.27",
+    "aiosqlite>=0.20",
+    "neo4j>=5.18",
+    "pydantic>=2.6",
+    "pydantic-settings>=2.2",
+    "python-multipart>=0.0.9",
+]
+
+[project.optional-dependencies]
+dev = ["pytest>=8.0", "pytest-asyncio>=0.23", "respx>=0.23"]
+
+[tool.setuptools.packages.find]
+include = ["app*"]
+
+[tool.pytest.ini_options]
+testpaths = ["app"]
+python_files = ["test_*.py"]
+asyncio_mode = "auto"