Dev-Sahad/Sahad-Ai-v2.5 — reverse-engineered prompt

Build me a futuristic AI developer workspace called SAHAD_AI v2.5. I want it to feel like a dark cyberpunk coding assistant where I can log in, chat with Gemini 2.0 Flash, ask for code help, debugging, architecture advice, and upload or paste images like screenshots so the AI can explain problems in the UI or terminal.

Please make it a full stack app with a simple Node and Express backend, a responsive HTML, JavaScript, and Tailwind style frontend, protected login using a password and secure session token, and basic JSON storage for saved data. The interface should look polished, neon, and developer focused, with clean AI responses, formatted code blocks, and easy copy buttons.

Set it up so it can run locally with environment variables for the Gemini API key, login password, secret key, and port. Also make sure it is ready to deploy on Render. Look up current Gemini docs online if needed.