Introduces a barcode scanner page using the camera for food item entry, adds routes for selecting meal types and scanning products, and updates the test.html template to allow adding items to specific meals. Also updates branding in base.html, changes the Flask secret key, and enables SSL by default in app.py.
Add base Flask application with user authentication, SQLAlchemy models for users, units, and food items, admin blueprint, and basic templates. Includes database migration setup, login form, and seed script for initial user creation.
