juliopolycarpo/mangostudio ? reverse-engineered prompt

Build me a local web app called MangoStudio for AI chat and image generation.

It should feel like a simple studio where I can open a browser, pick a model, chat with it, and generate images from prompts. I want support for a few different providers like Gemini, OpenAI compatible models, Anthropic, DeepSeek, Cursor, and ChatGPT, with a settings page where I can add API keys or sign in and switch between them easily. The app should remember my connectors securely if possible, and automatically use the right one based on the model I choose.

I also want it to run as one local service with a clean start, stop, status, and doctor command, plus a nice frontend and API that work together. If it makes sense, include support for reusable agent skills and MCP servers so I can extend what the agent can do without editing the app itself. Make it polished, easy to run locally, and if you need current setup details, look up the latest docs online.