TXT record and enable proxied

Change the records.TXT entry from an array to a plain string (preserving the google-site-verification value) and add "proxied": true to enable proxying for the domain. Aligns the JSON with the expected schema and enables proxy behavior.

domains/minuwu.json

@@ -5,8 +5,7 @@
   },
   "records": {
     "CNAME": "minuwu.github.io",
-    "TXT": [
+    "TXT": "google-site-verification=w3mQ1pbNvoqI1ONJYsGkxDXlbg3n_5BSVJ6ijhFXSoY"
-      "google-site-verification=w3mQ1pbNvoqI1ONJYsGkxDXlbg3n_5BSVJ6ijhFXSoY"
+  },
-    ]
+  "proxied": true
-  }
 }