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.

develop.sh

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+#!/bin/bash
+
+# Exit on error
+set -e
+
+# Load environment variables from .env
+if [ -f .env ]; then
+  set -a
+  source .env
+  set +a
+else
+  echo "Error: .env file not found"
+  exit 1
+fi
+
+# Start Database container
+echo "Starting database container..."
+docker compose up -d db
+
+echo "Waiting for database to be ready..."
+until docker compose exec -T db pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}; do
+  echo "Database is unavailable - sleeping"
+  sleep 1
+done
+
+# Set DATABASE_URL for local connection (using mapped port 5435)
+export DATABASE_URL="postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@localhost:5435/${POSTGRES_DB}"
+echo "Configured DATABASE_URL for local development"
+
+# Virtual Environment Setup
+VENV_DIR="backend/.venv"
+if [ ! -d "$VENV_DIR" ]; then
+    echo "Creating virtual environment in $VENV_DIR..."
+    python3 -m venv "$VENV_DIR"
+fi
+
+echo "Activating virtual environment..."
+source "$VENV_DIR/bin/activate"
+
+echo "Installing dependencies..."
+pip install -r backend/requirements.txt
+
+# Function to handle shutdown
+cleanup() {
+    echo ""
+    echo "Stopping services..."
+    # Kill all child processes of this script
+    pkill -P $$
+    exit
+}
+
+# Trap signals for cleanup
+trap cleanup SIGINT SIGTERM
+
+echo "Starting Backend..."
+# Run in background
+(cd backend && uvicorn app.main:app --reload --host 0.0.0.0 --port 8000) &
+
+echo "Starting Frontend..."
+# Run in background
+(cd frontend && npm run dev) &
+
+# Wait for process to settle
+sleep 2
+
+echo ""
+echo "Development environment running!"
+echo "Backend: http://localhost:8000"
+echo "Frontend: http://localhost:5173"
+echo "Press Ctrl+C to stop"
+
+# Wait indefinitely for background jobs
+wait