Update requirements.txt

requirements.txt

@@ -1,3 +1,31 @@
-altair
-pandas
-streamlit
+# Core dependencies
+streamlit>=1.28.0
+python-dotenv>=1.0.0
+pyyaml>=6.0
+
+# YouTube and transcript processing
+pytube>=15.0.0
+youtube-transcript-api>=0.6.0
+
+# AI and language processing
+langchain>=0.1.0
+langchain-community>=0.0.10
+langchain-openai>=0.1.0
+openai>=1.0.0
+faiss-cpu>=1.7.4
+
+# Text processing
+tiktoken>=0.5.0
+
+# Export functionality
+reportlab>=4.0.0
+
+# Utilities
+requests>=2.31.0
+urllib3>=2.0.0
+
+# Development and testing
+pytest>=7.4.0
+pytest-cov>=4.1.0
+black>=23.0.0
+flake8>=6.0.0