Add Vercel configuration for domain verification

domains/_vercel.sam25.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "Sam-2503",
+        "email": "sampraaddas2503@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=sam25.is-a.dev,a2583c8ba2e00e7e33f8"
+    }
+}