ItzMuri/posters — reverse-engineered prompt

Build me a simple FiveM resource where players can place custom posters on walls in game using just an image URL. I want it to feel like a graffiti or business advertising system, so a player can use a poster item, aim at a flat vertical surface, place the image there, and have it render at the correct size automatically from the image itself without making the user enter width or height.

Please make it work for a QBCore server and use ox_lib plus ox_inventory, since that seems to be the setup here. Include the basic item use flow, the placement interaction, and the poster showing properly in the world after it is placed. It should be easy for a server owner to install and test, and the code should be clean enough that someone could later adapt it to another framework if they want.

Keep it lightweight and practical. If anything is unclear, look up the current FiveM docs online and make sensible choices.