Refactored PricingTiers component to better handle empty, null, and undefined values, prevent formatting issues, and add error handling for tier changes. Updated ProductModal to use parseFloat for price values to improve precision. Minor robustness improvements to event handling and sorting.
Introduces a Profit Analysis modal for products, allowing users to view profit, margin, and markup calculations based on cost per unit and pricing tiers. Adds cost per unit input to the product modal, updates product types, and integrates the analysis modal into the products page and product table. This enhances product management with profit tracking and analysis features.
