Aashis719/snap-kit ? reverse-engineered prompt

Build me a web app called SnapKit that helps people turn a photo into ready to post social media content. I want users to sign up with Google or email, upload an image, and then get AI generated captions, hashtags, and short scripts tailored for different platforms like Instagram, TikTok, LinkedIn, X, and YouTube Shorts.

Make it feel fast and simple, with a clean modern design and a nice upload flow. Include a free account limit of 3 generations, and after that let users connect their own AI key if they want unlimited use. Store user data securely, support profile avatars, and keep the app privacy focused. Use the existing Supabase and image storage setup if it helps, and make sure the content generation happens on the server side so keys are not exposed. If you need to check current docs for the AI or auth pieces, go ahead and look them up online.