What this build does
A browser-based dosing tool for a telehealth clinic's GLP-1 programmes. Three calculators (Tirzepatide, Semaglutide and Semaglutide/Glycine/B12) convert a dose between milligrams and syringe units for the vial's concentration, show the working step by step, and draw the fill level on a numbered U-100 syringe. A second step recalculates the same dose for the clinic's new vial strength. Safety checks flag any volume a 1 mL syringe cannot hold instead of quietly capping the drawing, and the volume is rounded once so the printed steps never contradict each other. Keyboard-accessible tabs, and a config-driven structure where adding a medication is a single entry.
