We already have a Pharmacy eCommerce Website (CodeIgniter) and Mobile App (Flutter). A detailed PDF document is attached explaining the exact feature requirements. Your task is to implement a mandatory prescription upload feature on the checkout page for both website and mobile app, and show the uploaded prescription in the admin order panel. Important Instructions (Must Read) Please read the attached PDF carefully Mention your total price and delivery deadline clearly Only apply if you can complete the work within your own committed time & budget Deadline is strict If the project exceeds the committed deadline, the project will be cancelled No scope changes after confirmation While Applying, Mention Clearly Your total price for this task Your exact delivery time (number of days) Your experience with CodeIgniter & Flutter Confirmation that you have read the PDF Project Type One-time feature enhancement Immediate start required