Initial scaffold: offertesysteem (clients, projects, quotes, quote_items)

- Next.js 15 + TypeScript + Tailwind, standalone output
- SQLite schema: users, clients, projects, quotes, quote_items
- HMAC-signed sessie-cookie auth
- Dockerfile (Node 22 Alpine, multi-stage)
- create-admin script
- Doel: portal.rikxplatform.nl

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

package.json

@@ -0,0 +1,27 @@
+{
+  "name": "rikx-platform",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "create-admin": "tsx scripts/create-admin.ts"
+  },
+  "dependencies": {
+    "@types/nodemailer": "^8.0.1",
+    "next": "16.3.4",
+    "nodemailer": "^10.0.3",
+    "react": "19.2.8",
+    "react-dom": "19.2.8",
+    "tsx": "^4.23.13"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4",
+    "@types/node": "^20",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "tailwindcss": "^4",
+    "typescript": "^5"
+  }
+}