chore: initialize project structure and configuration files

requirements.txt

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+# Azure services
+azure-ai-formrecognizer==3.3.0
+azure-core>=1.29.0
+openai>=1.0.0
+
+# PDF processing
+pdf2image==1.17.0
+Pillow>=10.0.0
+pytesseract==0.3.13  # Fallback OCR
+pdfplumber==0.10.3  # Enhanced table extraction
+PyPDF2>=3.0.1
+
+# CLI and utilities
+click==8.1.7
+pathlib2==2.3.7.post1
+
+# Data handling
+numpy>=1.24.0
+python-dateutil>=2.8.2
+
+# For better logging
+colorlog>=6.7.0
+
+# Development tools (optional)
+pytest>=7.4.0
+black>=23.0.0
+flake8>=6.0.0
+
+# Type hints
+typing-extensions>=4.0.0
+dataclasses>=0.6
+
+# For text processing
+nltk>=3.8.1
+textstat>=0.7.3
+python-dotenv==1.0.0