feat: initialize project with Vite + React + TypeScript + Tailwind CSS

- Set up Vite 7 + React 19 + TypeScript 5 + Tailwind CSS 4
- Configure path aliases (@/ -> src/)
- Create Layout with Header and Footer components
- Create HomePage with hero section and feature highlights
- Set up cursor rules for agent-driven development
- Create PLAN.md and LESSONS.md for progress tracking

Co-authored-by: Cursor <cursoragent@cursor.com>

package.json

@@ -0,0 +1,27 @@
+{
+  "name": "diet",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "clsx": "^2.1.1",
+    "react": "^19.2.4",
+    "react-dom": "^19.2.4",
+    "react-router-dom": "^7.13.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/vite": "^4.1.18",
+    "@types/node": "^25.2.3",
+    "@types/react": "^19.2.13",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^5.1.4",
+    "tailwindcss": "^4.1.18",
+    "typescript": "^5.9.3",
+    "vite": "^7.3.1"
+  }
+}