Show HN: Episteme AI – Self-healing roadmaps with paywall and dead-link checks

Episteme AI is a Next.js app that turns career goals into time-bounded, prerequisite-ordered weekly roadmaps built from free public courseware, using Gemini 2.0 Flash with a deterministic 52-week fallback. It uses Cheerio to detect paywalls and dead links via Schema.org JSON-LD and HTTP checks, then swaps in verified free alternatives, with approval-gated calendar and audit-link dispatch backed by SQLite idempotency keys. A live demo is available at episteme-ai-one.vercel.app.