alejoespinosa00/analizador-de-movimiento-de-proyectiles ? reverse-engineered prompt

Build me a web app called PhysMotion for analyzing projectile motion from a video.

I want the user to be able to upload a video, play it normally or frame by frame, pick points on the projectile’s path, and set a reference system with an origin, axes, and one real world distance to convert pixels into physical units. Then the app should calculate whatever physics values it can from the data, show clearly what was measured, what the user entered, and what was estimated, and explain the equations used in simple language.

Include a home page, an analysis page, a help page with instructions, and an about page for the team. The results should show numbers, graphs, and trajectory information like position, velocity, acceleration, flight time, maximum height, and horizontal range when enough data exists. Keep it manual, no automatic projectile detection needed. Please make it clean, easy to use, and accurate, and use the existing React, TypeScript, Vite, Tailwind, router, Zustand, Recharts, video, and canvas setup if it’s already there.