Migrated add_meal_v2 routes and templates to add_meal, renaming endpoints and updating references throughout the app. Removed legacy daily_log2 route and template, consolidating to daily_log. Moved macro_arr_to_json to utils.py for reuse. Updated navigation and redirect logic to use new routes. Improved item finding and barcode scanning UI.
Introduces a new add_meal blueprint with routes and templates for scanning barcodes, adding new food items, and logging meals. Updates FoodItemForm and FoodLogForm validation, changes FoodLog.amount to float, and integrates the new workflow into the daily log UI. Refactors user routes and templates to support the new meal logging process.
