Built “Event Buddy AI” in a day for PromptWars (Google Antigravity + Cloud Run)

_Hackathons always scared me a bit. Too many ideas, too little time, and lots of “pro” developers showing crazy projects. PromptWars changed that. This time, I decided to keep it simple and actually finish something. I picked the Physical Event Experience challenge and built a tiny web app called Event Buddy AI. The problem I wanted to solve At any physical event, people are always confused: “Where is Hall A or Hall B?” “Where’s the help desk or food court?” “What can I attend next that actually