diff --git a/requirements.txt b/requirements.txt
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+# Core dependencies
+fastapi==0.115.6
+uvicorn[standard]==0.34.0
+pydantic==2.10.4
+pydantic-settings==2.6.1
+
+# Database
+sqlite3
+aiosqlite==0.20.0
+
+# Authentication & Security
+python-jose[cryptography]==3.3.0
+passlib[bcrypt]==1.7.4
+python-multipart==0.0.18
+bcrypt==4.2.1
+cryptography==44.0.0
+
+# Validation
+email-validator==2.2.0
+
+# HTTP Client
+requests==2.32.3
+httpx==0.28.1
+
+# Templates & Static Files
+jinja2==3.1.4
+aiofiles==24.1.0
+
+# Monitoring & Logging
+python-json-logger==2.0.7
+prometheus-client==0.21.1
+
+# Error Tracking
+sentry-sdk==2.19.0
+
+# Development & Testing
+pytest==8.3.4
+pytest-asyncio==0.24.0
+pytest-cov==6.0.0
+black==24.10.0
+flake8==7.1.1
+mypy==1.13.0
+
+# Database migrations (optional)
+alembic==1.14.1
+
+# Production server
+gunicorn==23.0.0
+
+# Environment variables
+python-dotenv==1.0.1
+
+# QR Code generation
+qrcode==7.4.2
+pillow==11.0.0
+
+# Utilities
+python-dateutil==2.9.0
+pytz==2024.2
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