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/tsconfig.json

@@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "strict": true,
+    "jsx": "preserve",
+    "importHelpers": true,
+    "allowImportingTsExtensions": true,
+    "noEmit": true,
+    "isolatedModules": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "resolveJsonModule": true,
+    "paths": {
+      "@/*": ["./src/*"]
+    },
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "types": ["vite/client"]
+  },
+  "include": ["src/**/*.ts", "src/**/*.vue", "env.d.ts"],
+  "exclude": ["node_modules", "dist"]
+}