Initial todo app setup

- Backend: Bun + Elysia + Drizzle ORM + PostgreSQL
- Frontend: React + Vite + TailwindCSS + Zustand
- Auth: better-auth with invite-only system
- Features: Tasks, Projects, Sections, Labels, Comments
- Hammer API: Dedicated endpoints for AI assistant integration
- Unit tests: 24 passing tests
- Docker: Compose file for deployment

.env.example

@@ -0,0 +1,15 @@
+# Database
+DB_USER=todo
+DB_PASSWORD=your-secure-password
+DB_NAME=todo_app
+
+# App URLs
+APP_URL=https://todo.donovankelly.xyz
+ALLOWED_ORIGINS=https://todo.donovankelly.xyz
+
+# Email (Resend)
+RESEND_API_KEY=re_xxxxx
+FROM_EMAIL=noreply@donovankelly.xyz
+
+# Hammer API (for AI assistant integration)
+HAMMER_API_KEY=generate-a-secure-key-here