Create requirements.txt

requirements.txt

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+gradio==4.19.2          # UI framework, pinned for stability
+requests==2.31.0        # HTTP requests for scraping
+beautifulsoup4==4.12.3  # HTML parsing
+sentence-transformers==2.5.0  # Retrieval embeddings (all-MiniLM-L6-v2)
+transformers==4.38.2    # QA model (DistilBERT)
+torch==2.2.1            # Required by transformers, CPU-only to save memory
+numpy==1.26.4           # Array operations for embeddings