feat: scaffold Vue 3 + TypeScript + Vite frontend admin panel

Set up web/ directory with complete frontend scaffolding:
- Vue 3 + TypeScript + Vite with Tailwind CSS v4
- Vue Router with auth guard (redirects to /login when unauthenticated)
- Pinia stores: auth, cookies, devices, settings
- Axios HTTP client with token interceptor
- Views: Login, Dashboard, Cookies, Devices, Settings
- Vite dev server proxy to relay API on port 8100
- Headless UI and Heroicons dependencies

Co-Authored-By: Paperclip <noreply@paperclip.ing>

web/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "cookiebridge-web",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vue-tsc --noEmit && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@headlessui/vue": "^1.7.0",
+    "@heroicons/vue": "^2.2.0",
+    "axios": "^1.8.0",
+    "pinia": "^3.0.0",
+    "vue": "^3.5.0",
+    "vue-router": "^4.5.0"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.58.2",
+    "@tailwindcss/vite": "^4.0.0",
+    "@vitejs/plugin-vue": "^5.2.0",
+    "tailwindcss": "^4.0.0",
+    "typescript": "^5.9.0",
+    "vite": "^6.2.0",
+    "vue-tsc": "^2.2.0"
+  }
+}