Five-Brand AI SaaS Ecosystem with Shared Next.js Monorepo

Complete five-brand AI SaaS ecosystem with shared Next.js 16 monorepo powering five distinct .com domains. Each brand targets different AI niches (agents, fintech, dev tools, creative, general GPT) through independent Vercel deployments. Features multi-provider AI routing with Groq primary and OpenAI/Gemini/DeepSeek/Grok fallbacks, Stripe payment scaffolding, and NextAuth v5 authentication. Pre-revenue asset sale ready for operator to activate with their own API keys and launch strategy.