Ozigi v2 Changelog: Building a Modular Agentic Content Engine with Next.js, Supabase, and Playwright

When I first built Ozigi (initially WriterHelper), the goal was simple: give content professionals in my team a way to break down their articles into high-signal social media campaigns. OziGi has now evolved to an open source SaaS product, oepn to the public to use and imnprove. Here is the complete technical changelog of how I completely turned Ozigi from a monolithic v1 MVP into a production-ready v2 SaaS. 1. Modular Refactoring of The App.tsx (Separation of Concerns) In v1, my entire application: auth, API calls, and UI—lived inside a long app/page.tsx file. The more changes I made, the harder it became to manage. Modular Component Library: I stripped down the monolith and broke the UI into pure, single-responsibility React components ( Header , Hero , Distillery , etc.). Centralized Type Safety: I created a global lib/types.ts file with a strict CampaignDay interface (complete with index signatures) to finally eliminate the TypeScript "shadow type" build errors I was fighting. Stat