fix: adapt for supported GraphQL schema on 6.12.13

docs/unraid-schema.graphql

@@ -468,7 +468,6 @@ type Config implements Node {
 
 type CoreVersions {
   api: String
-  kernel: String
   unraid: String
 }
 
@@ -478,7 +477,6 @@ type PackageVersions {
   nginx: String
   node: String
   npm: String
-  openssl: String
   php: String
   pm2: String
 }
@@ -487,33 +485,6 @@ type InfoVersions implements Node {
   id: PrefixedID!
   core: CoreVersions!
   packages: PackageVersions
-  # Flattened fields used by the MCP tool queries (may exist in live API)
-  kernel: String
-  openssl: String
-  systemOpenssl: String
-  systemOpensslLib: String
-  node: String
-  v8: String
-  npm: String
-  yarn: String
-  pm2: String
-  gulp: String
-  grunt: String
-  git: String
-  tsc: String
-  mysql: String
-  redis: String
-  mongodb: String
-  apache: String
-  nginx: String
-  php: String
-  docker: String
-  postfix: String
-  postgresql: String
-  perl: String
-  python: String
-  gcc: String
-  unraid: String
 }
 
 type InfoOs implements Node {
@@ -522,7 +493,6 @@ type InfoOs implements Node {
   distro: String
   release: String
   codename: String
-  kernel: String
   arch: String
   hostname: String
   logofile: String
@@ -532,7 +502,6 @@ type InfoOs implements Node {
   fqdn: String
   servicepack: String
   uefi: Boolean
-  codepage: String
 }
 
 type InfoCpu implements Node {
@@ -714,11 +683,6 @@ type InfoDisplay implements Node {
   wwn: Boolean!
 }
 
-type Apps {
-  installed: Int
-  started: Int
-}
-
 type Info implements Node {
   id: PrefixedID!
   os: InfoOs!
@@ -729,7 +693,6 @@ type Info implements Node {
   versions: InfoVersions!
   devices: InfoDevices!
   display: InfoDisplay!
-  apps: Apps
   machineId: ID
   time: DateTime!
 }