Add web frontend

web/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "sybil-web",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "lucide-preact": "^0.542.0",
+    "preact": "^10.27.2",
+    "tailwind-merge": "^3.3.1"
+  },
+  "devDependencies": {
+    "@preact/preset-vite": "^2.10.2",
+    "@types/node": "^24.5.2",
+    "autoprefixer": "^10.4.21",
+    "postcss": "^8.5.6",
+    "tailwindcss": "^3.4.17",
+    "typescript": "^5.9.3",
+    "vite": "^7.1.7"
+  }
+}