ComposioHQ/open-genspark — reverse-engineered prompt

Build me an open source Genspark style web app where I can chat with a smart AI assistant and ask it to help with writing, research, documents, and presentations.

I want a clean responsive chat interface with message history and a few starter prompts. If I paste a Google Sheets or Google Docs link, the app should notice it automatically, open a side panel, and let me ask questions about that file. I also want to ask the assistant to create a presentation on any topic, preview the generated slides, and download the result as a PowerPoint .pptx file.

Use Google Gemini as the AI model and make it easy to add my Google AI Studio API key in an environment file. Include the main tools shown in the UI, like general assistant, presentation creator, web search, image generation, video creator, phone calls, and file manager, even if some are simple placeholders for now.

Make it look polished, work on mobile and desktop, and be runnable locally with npm.