refactor: clean up requirements.txt by removing unused dependencies and organizing into logical groups

Author: cosimoiaia

requirements.txt

@@ -1,23 +1,26 @@
+# Web Framework
 fastapi>=0.104.1
 uvicorn>=0.24.0
-python-dotenv>=1.0.0
+python-multipart>=0.0.6
+
+# Configuration and Models
 pydantic>=2.5.1
 pydantic-settings>=2.1.0
+python-dotenv>=1.0.0
+
+# RAG Pipeline
 langgraph>=0.0.26
 langchain-core>=0.1.27
 langchain-groq>=0.0.1
+langchain-huggingface>=0.0.8
 chromadb>=0.4.18
 pypdf>=3.17.1
 pandas>=2.1.3
-numpy>=1.26.2
-pytest>=7.4.3
-httpx>=0.25.2
-python-multipart>=0.0.6
+
+# Monitoring and Logging
 prometheus-client>=0.19.0
 prometheus-fastapi-instrumentator>=6.1.0
-groq>=0.4.0
-tiktoken>=0.5.1
-langchain-huggingface>=0.0.8
-transformers>=4.37.2
-torch>=2.2.0
-huggingface-hub>=0.21.3
+
+# Testing
+pytest>=7.4.3
+httpx>=0.25.2