fix: Suppress harmless multiprocessing warnings from ydata-profiling

fix: Configure high-quality ydata profiling for HuggingFace 16GB RAM

fix: Auto-optimize ydata profiling for memory constraints

fix: Fix module import paths for Render deployment

refactor: Remove Sweetviz and use YData Profiling as primary EDA tool

fix: Add NumPy 2.x compatibility handling for Sweetviz

feat: Initial commit - Data Science Agent with React frontend and FastAPI backend