docs: Cursor Cloud development environment setup

[captenmasin]

Summary

Adds ## Cursor Cloud specific instructions to AGENTS.md so future Cloud Agents can set up and run BookBound without Laravel Herd.

Covers:

• One-time PHP 8.4 / Node system dependencies
• First-time app setup (.env, SQLite, migrate, seed, build)
• Recommended .env overrides for VMs without Redis/Meilisearch
• How to start Laravel + Vite dev servers
• Lint/test/build commands and common gotchas

VM update script

composer install --no-interaction --prefer-dist
npm ci

Verification performed

• Installed PHP 8.4.22, Composer, composer install, npm ci
• Configured .env with sync queue + database scout + Google Books API
• Ran migrations + db:seed, npm run build
• Started php artisan serve and npm run dev
• 34 feature tests passed (Home, Registration, AddBookToUser)
• Browser demo: registered user → logged in → library with book → book detail page

BookBound library with Dune

bookbound-dev-environment-demo.mp4

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