Deploy AI chat web app to production — secure backend, hosting, embeddable widget (fixed price)**

I have a fully built, working single-file web application (HTML/CSS/JS) that talks to the Anthropic Claude API. The product design, conversation logic, and interface are DONE. I need an experienced developer to take it from prototype to production. This is deployment work, not product development. SCOPE: 1. Secure backend proxy (Node.js or similar) so the Anthropic API key never touches the browser — the page calls my server, my server calls Anthropic (including streaming and web-search tool support) 2. Production hosting on my own infrastructure/account (I retain full control and ownership — walk me through the setup) 3. Deploy at a custom domain I own, mobile-friendly, SSL 4. Embeddable version: a one-line script or iframe snippet so the app can run on partner websites 5. Basic conversation logging to a simple database so I can review transcripts 6. Handoff documentation: how to update the app's prompt/content myself without a developer NOT IN SCOPE (later phases): payment processing, calendar integration, avatar/voice services. If this goes well, that follow-on work is yours first. REQUIREMENTS: - Proven experience deploying LLM API integrations (Anthropic or OpenAI) with secure key handling - You sign my NDA before seeing the application - All work is work-for-hire: code, credentials, and accounts belong to me/my company - Fixed price. Bid with your number, timeline, and one example of a similar deployment TIMELINE: ready to start immediately; target 2–3 weeks to live. I'm a Florida logistics company owner building a real product with a signed pilot prospect waiting — I move fast and pay on milestones. Bring your questions.