FIX: add json to schema file

schemas/version_1.schema → schemas/version_1.schema.json

 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "title": "Schema Version 1.0",
+  "title": "NETVS Hub Schema Version 1.0",
   "description": "",
   "properties": {
     "schema_version": {
@@ -212,4 +212,4 @@
       ]
     }
   }
-}
\ No newline at end of file
+}