Cocosg09/generateur-whatsapp-crf ? reverse-engineered prompt

Build me a web app for the Croix Rouge française that helps prepare a WhatsApp briefing message for a DPS. I want to be able to create one or more posts, enter the times, people involved, vehicle, gear, meeting point, and contact info, then have the app generate a clean final message that I can still edit by hand before copying or sending it.

It should also let me paste in a table or import a PDF order of mission and automatically suggest the post names, times, and intervenants so I can confirm before applying. Please include an admin area where I can manage users, reusable vehicle and material sets, common field suggestions, and a shared footer message.

I also need history for the last messages saved with search and reload, local draft saving in the browser, a WhatsApp sharing option with QR code, and a print or PDF export that looks good on paper. If something is unclear, check the latest docs online and make sensible choices.