add requirements.txt

requirements.txt

@@ -1,4 +1,11 @@
-langchain-openai>=0.3.0
 langchain-core>=0.3.0
-pydantic>=2.0.0
-python-dotenv>=1.0.0
+langchain-openai>=0.3.0
+pydantic>=2.0
+python-dotenv>=1.0.0
+rich>=13.0.0
+duckduckgo-search>=6.0.0
+fastmcp>=0.1.0
+qdrant-client>=1.7.0
+langchain-qdrant>=0.1.0
+langchain-ollama>=0.1.0
+langchain-text-splitters>=0.1.0