Initial project scaffolding for health tracker app

Set up backend and frontend structure for a health and fitness tracker using Python (FastAPI, SQLModel, DSPy) and React. Includes Docker and Compose configs, authentication, nutrition AI module, health/nutrition/user endpoints, database models, and basic frontend with routing and context. Enables tracking nutrition, health metrics, and user management, with architecture ready for future mobile and cloud deployment.

.gitignore

@@ -0,0 +1,38 @@
+# System files
+.DS_Store
+Thumbs.db
+
+# Environment Variables
+.env
+.env.*
+!.env.example
+
+# Python
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.Python
+env/
+venv/
+.venv/
+*.egg-info/
+.coverage
+htmlcov/
+.pytest_cache/
+
+# Node / Frontend
+node_modules/
+npm-debug.log
+yarn-error.log
+.npm-cache/
+dist/
+build/
+.output/
+
+# Docker
+postgres_data/
+
+# IDE settings
+.vscode/
+.idea/