🏗️ ✨ Application base architecture

• 🏗️ Domain layer: plan / layer / item

• 🏗️ Infrastructure layer: localstorage repository

• 🏗️ Presentation layer : vanilla js implementation for base project

• ✨ Undo / Redo actions

• ✨ Status bar

• ✨ Layer toolbox

• ✨ Catalog toolbox: create items

• 🚸 Keyboard shortcuts

• 🌱 Default plan