Introduces product selection and exclusion controls to both new and edit promotion forms, allowing promotions to target all, specific, or all-but-specific products. Adds a reusable ProductSelector component, updates promotion types to support new fields, and adjusts cookie max-age for authentication. Also adds two new business quotes.
Introduces a reusable date picker component with support for single date, date range, and month selection. Updates the stock management page to allow exporting reports by daily, weekly, monthly, or custom date ranges using the new pickers. Refactors promotion form to use the new date picker for start and end dates. Adds more business quotes to the quotes config.
