Update requirements.txt

requirements.txt

@@ -1,3 +1,20 @@
-   gradio
-   groq
-   langchain-google-genai
+fastapi>=0.104.0
+uvicorn[standard]>=0.24.0
+gradio>=4.44.0
+langchain>=0.3.0
+langchain-core>=0.3.0
+langchain-community>=0.3.0
+langchain-groq>=0.2.0
+langchain-google-genai>=2.0.0
+langchain-cohere>=0.3.0
+langchain-cerebras>=0.1.0
+langgraph>=0.2.0
+neo4j>=5.14.0
+pydantic>=2.0.0
+pandas>=2.0.0
+PyMuPDF>=1.23.0
+python-docx>=1.1.0
+openpyxl>=3.1.0
+beautifulsoup4>=4.12.0
+markdown>=3.5.0
+python-multipart>=0.0.6