Replace Next.js/Supabase/Vercel stack with a self-hostable setup: Vite+React frontend, Fastify+Drizzle+PostgreSQL backend with own JWT auth, deploy via git pull + rsync + systemd (checkout/service separated, updates pulled from Gitea). Adds a reference auth route (register/login/me) as the canonical pattern for new routes. Updates all skills/rules/agents/docs to match. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BMdBJfD9TT6XUU2NqGG1PN