I need an AI-powered chatbot fully integrated with the WhatsApp Business API. It must converse fluently via text, understand incoming voice notes, and react appropriately to images or short video clips sent by users. I’m open on the underlying stack—Dialogflow, Microsoft Bot Framework, IBM Watson, or any other platform you believe best fits WhatsApp’s constraints—so long as latency stays low and the solution can scale as traffic grows. Core deliverables: • End-to-end WhatsApp Business API setup (webhook, number verification, cloud or on-prem hosting). • NLP pipeline that handles: – Text intent recognition and response generation. – Speech-to-text for voice messages, with the transcript feeding the same intent flow. – Basic media handling: at minimum detect the file type, optionally run simple image/video analysis, then return a helpful reply. • Admin panel or documented config files where I can update intents, FAQs, and media rules without redeploying code. • Handover protocol to a live agent (email, CRM, or WhatsApp takeover) when confidence is low or the user requests a human. • Clear setup instructions plus source code in a private repo. Acceptance criteria: the bot must pass a demo session where I send mixed text, voice, and image messages and receive context-aware replies within five seconds each time. Let me know your proposed tech stack, timeline, and any past WhatsApp bot examples you can share.