✨ feat(storage): add Storage app scaffolding and root config

- Add storage app directory structure
- Add storage dev scripts to root package.json
- Add storage backend and web env generation in generate-env.mjs
- Update COMMANDS.md with calendar app reference

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

apps/storage/package.json

@@ -0,0 +1,9 @@
+{
+	"name": "storage",
+	"version": "1.0.0",
+	"private": true,
+	"description": "Cloud storage application (like Google Drive/Dropbox)",
+	"scripts": {
+		"dev": "turbo run dev"
+	}
+}