Create requirements.txt

requirements.txt

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+# Core AI & LangChain
+langchain>=1.1.0
+langchain-core>=0.0.200
+langchain-groq>=0.0.12
+langchain-community>=0.0.30
+
+# Gradio UI
+gradio==4.44.0
+
+# Web server
+fastapi==0.115.2
+uvicorn==0.30.0
+
+# Utilities
+python-dotenv>=1.0.0
+
+# Data handling
+numpy>=1.24.0
+pandas>=2.0.0
+
+# Regex, date/time
+regex>=2023.6.3
+
+# Optional NLP
+nltk>=3.8.0
+spacy==3.7.2