Add domain configuration files for qhung

Added _vercel.qhung.json for Vercel domain verification and qhung.json for CNAME record setup. These files configure domain ownership and DNS records for the qhung domain.

domains/_vercel.qhung.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "hygef-v4",
+        "email": "hungsct1702@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=qhung.is-a.dev,fd37289252b9d02b076e"
+    }
+}

domains/qhung.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "hygef-v4",
+        "email": "hungsct1702@gmail.com"
+    },
+    "records": {
+        "CNAME": "cname.vercel-dns.com"
+    }
+}