Copy RedactAI?

Build me a Content Creation web app like RedactAI.

RedactAI does: All-in-one platform to create content on LinkedIn Grow faster on LinkedIn with AI posts, viral hooks, engaging stories. Understand your audience, refine your content, and accelerate your LinkedIn grow It reportedly makes about $5k/mo, so the core idea clearly has demand — I want a lean version I can run and charge for.

Start from the open-source project langchain-ai/social-media-agent (https://github.com/langchain-ai/social-media-agent) — reuse what fits, strip its branding, and build the specifics below on top of it.

Requirements:
- Connect accounts (X, LinkedIn, Instagram, etc.) via OAuth; compose once, publish everywhere.
- Calendar + queue scheduling, drafts, and a per-platform preview.
- AI: generate post variations and a week of content from a topic.
- Basic analytics (reach/engagement) pulled per platform.

Also:
- Clean, modern, responsive UI with a thoughtful landing page.
- Email/password auth and a simple paid tier (Stripe test mode) so it's ready to charge.
- A README covering setup, environment variables, and how to deploy.

Ship a working MVP I can run locally first, then help me deploy it.