feat(deploy): add vercel.json - Vite SPA config + security headers (#222)

Signed-off-by: Igor <romanchaa997@gmail.com>

Author: romanchaa997

vercel.json

@@ -0,0 +1,27 @@
+{
+  "version": 2,
+  "buildCommand": "pnpm install --no-frozen-lockfile && pnpm run build",
+  "outputDirectory": "dist",
+  "installCommand": "pnpm install --no-frozen-lockfile",
+  "framework": "vite",
+  "git": {
+    "deploymentEnabled": {
+      "main": true
+    }
+  },
+  "rewrites": [
+    { "source": "/(.*)", "destination": "/index.html" }
+  ],
+  "headers": [
+    {
+      "source": "/(.*)",
+      "headers": [
+        { "key": "X-Frame-Options", "value": "DENY" },
+        { "key": "X-Content-Type-Options", "value": "nosniff" },
+        { "key": "Referrer-Policy", "value": "strict-origin-when-cross-origin" },
+        { "key": "Strict-Transport-Security", "value": "max-age=31536000; includeSubDomains; preload" },
+        { "key": "Permissions-Policy", "value": "camera=(), microphone=(), geolocation=()" }
+      ]
+    }
+  ]
+}