chore: import upstream snapshot with attribution

src/backend/Dockerfile

@@ -0,0 +1,18 @@
+FROM dataelement/bisheng-backend:base.v8
+
+WORKDIR /app
+
+COPY ./ ./
+
+# 生成并安装依赖
+RUN uv pip compile pyproject.toml --upgrade --output-file requirements.txt && \
+    uv pip install -r requirements.txt --system --no-cache-dir && \
+    uv cache clean && \
+    rm -f requirements.txt
+
+
+# patch langchain-openai lib. remove this when langchain-openai support reasoning_content
+RUN patch -p1 < /app/bisheng/patches/langchain_openai.patch /usr/local/lib/python3.10/site-packages/langchain_openai/chat_models/base.py
+
+
+CMD ["sh entrypoint.sh"]