feat:添加demo，function call

requirements.txt

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+aiohappyeyeballs==2.6.1
+aiohttp==3.12.15
+aiosignal==1.4.0
+altair==5.5.0
+annotated-types==0.7.0
+anthropic==0.60.0
+anyio==4.9.0
+attrs==25.3.0
+beautifulsoup4==4.13.4
+blinker==1.9.0
+boto3==1.39.16
+botocore==1.39.16
+bs4==0.0.2
+cachetools==6.1.0
+certifi==2025.7.14
+cffi==1.17.1
+charset-normalizer==3.4.2
+click==8.2.1
+colorama==0.4.6
+colorlog==6.9.0
+cryptography==45.0.5
+dashscope==1.24.0
+dataclasses-json==0.6.7
+distro==1.9.0
+fastapi==0.116.1
+filelock==3.18.0
+Flask==3.1.1
+frozenlist==1.7.0
+fsspec==2025.7.0
+gitdb==4.0.12
+GitPython==3.1.45
+greenlet==3.2.3
+h11==0.16.0
+hf-xet==1.1.5
+httpcore==1.0.9
+httpx==0.28.1
+httpx-sse==0.4.1
+huggingface-hub==0.34.3
+idna==3.10
+itsdangerous==2.2.0
+Jinja2==3.1.6
+jiter==0.10.0
+jmespath==1.0.1
+jsonpatch==1.33
+jsonpointer==3.0.0
+jsonschema==4.25.0
+jsonschema-specifications==2025.4.1
+langchain==0.3.26
+langchain-community==0.3.27
+langchain-core==0.3.72
+langchain-deepseek==0.1.4
+langchain-openai==0.3.28
+langchain-text-splitters==0.3.9
+langsmith==0.3.45
+lxml==6.0.0
+MarkupSafe==3.0.2
+marshmallow==3.26.1
+mcp==1.18.0
+mcp-server==0.1.4
+mpmath==1.3.0
+multidict==6.6.3
+mypy_extensions==1.1.0
+mysql-connector-python==9.4.0
+mysqlclient==2.2.7
+narwhals==2.0.1
+networkx==3.5
+numpy==2.3.2
+openai==1.97.1
+orjson==3.11.1
+packaging==25.0
+pandas==2.3.1
+pillow==11.3.0
+propcache==0.3.2
+protobuf==6.31.1
+pyarrow==21.0.0
+pycparser==2.22
+pydantic==2.11.7
+pydantic-settings==2.10.1
+pydantic_core==2.33.2
+pydeck==0.9.1
+PyMySQL==1.1.1
+python-a2a==0.5.4
+python-dateutil==2.9.0.post0
+python-dotenv==1.1.1
+python-multipart==0.0.20
+pytz==2025.2
+pywin32==311
+PyYAML==6.0.2
+referencing==0.36.2
+regex==2025.7.31
+requests==2.32.4
+requests-toolbelt==1.0.0
+rpds-py==0.26.0
+s3transfer==0.13.1
+safetensors==0.5.3
+setuptools==78.1.1
+six==1.17.0
+smmap==5.0.2
+sniffio==1.3.1
+soupsieve==2.7
+SQLAlchemy==2.0.42
+sse-starlette==3.0.2
+starlette==0.47.2
+streamlit==1.47.1
+sympy==1.14.0
+tenacity==9.1.2
+tiktoken==0.9.0
+tokenizers==0.21.4
+toml==0.10.2
+torch==2.7.1
+tornado==6.5.1
+tqdm==4.67.1
+transformers==4.54.1
+typing-inspect==0.9.0
+typing-inspection==0.4.1
+typing_extensions==4.14.1
+tzdata==2025.2
+urllib3==2.5.0
+uvicorn==0.35.0
+watchdog==6.0.0
+websocket-client==1.8.0
+Werkzeug==3.1.3
+wheel==0.45.1
+yarl==1.20.1
+zstandard==0.23.0
+schedule==1.2.2
+langchain-mcp-adapters==0.1.11