Initial commit: Phase 1 scaffolding complete

- Root package.json with concurrently for dev server
- Client: Vite + React 18 with design tokens and proxy config
- Server: Express with CORS, multer (20MB), Sharp resize
- Upload endpoint with preview generation
- Dockerfile (multi-stage) and docker-compose.yml
- Canvas deferred to Phase 8 (export functionality)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -0,0 +1,18 @@
+{
+  "name": "apparel-designer",
+  "version": "1.0.0",
+  "description": "T-shirt customization editor with background removal, stickers, text, and export",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "postinstall": "cd client && npm install && cd ../server && npm install",
+    "dev": "concurrently \"npm run dev:client\" \"npm run dev:server\"",
+    "dev:client": "cd client && npm run dev",
+    "dev:server": "cd server && npm run dev",
+    "build": "cd client && npm run build",
+    "start": "node server/index.js"
+  },
+  "devDependencies": {
+    "concurrently": "^8.2.0"
+  }
+}