Project scaffold — monorepo, Fastify, Next.js, Postgres + pgvector, DB schema

[Punkte]

What to build

Bootstrap the full project skeleton end-to-end: monorepo structure, Fastify + TypeScript backend, Next.js + TypeScript + Tailwind frontend, PostgreSQL with pgvector extension, Drizzle ORM schema, and a passing health-check route. Everything compiles and the DB schema migrates cleanly.

Acceptance criteria

• revive-api and revive-web packages exist in the monorepo
• POST /health returns 200
• PostgreSQL running locally with pgvector extension enabled
• Drizzle schema defines: users, conversations, personas, chunks, chat_messages
• chunks.embedding vector(1536) column with HNSW index
• npm run dev starts both API and frontend without errors
• TypeScript compiles with no errors

Blocked by

None — can start immediately.