Initial scaffold: Hammer Queue task dashboard

- Backend: Elysia + Bun + Drizzle ORM + PostgreSQL
- Frontend: React + Vite + TypeScript + Tailwind CSS
- Task CRUD API with bearer token auth for writes
- Public read-only dashboard with auto-refresh
- Task states: active, queued, blocked, completed, cancelled
- Reorder support for queue management
- Progress notes per task
- Docker Compose for local dev and Dokploy deployment

backend/.env.example

@@ -0,0 +1,3 @@
+DATABASE_URL=postgres://hammer_queue:hammer_queue@localhost:5432/hammer_queue
+API_BEARER_TOKEN=change-me-to-a-secure-token
+PORT=3100