I have the full high-level architecture for an AI-driven SaaS that layers advanced automation and analytics on top of WhatsApp without forcing businesses to migrate their existing WhatsApp Business numbers to the official API. To reach first-release readiness I now need a turnkey MVP that includes: • A cross-platform Mobile Bridge App built with Flutter for both Android and iOS, responsible for secure message relay and device pairing. • A React + TailwindCSS web Admin Panel tied into MySQL, covering user management, settings and basic usage metrics. • A scalable Backend Orchestrator that exposes REST/webhook endpoints, handles queueing and persistence, and feeds data to the AI pipeline. • The initial AI pipeline itself (Python or Node is fine) for intent detection, auto-reply suggestions and lightweight analytics. All diagrams, user flows and component specs are ready for review; I’d like you to walk through them, flag any gaps, propose your implementation approach and give a realistic timeline with milestone-based cost estimates. Preferred stack: Flutter, React, TailwindCSS, MySQL and any cloud-native tooling you deem fit for CI/CD and containerisation. Please highlight past projects of similar scope, estimated total effort in person-hours, and the breakdown of delivery phases (bridge app, backend, panel, AI). Once we agree on scope, I’ll grant repo access and set up the staging environment so you can begin right away.