feat(github): add meta screen

lib/graphql/github.graphql

@@ -1105,3 +1105,15 @@ query Releases($name: String!, $owner: String!, $cursor: String) {
     }
   }
 }
+
+# meta
+query Meta {
+  meta {
+    gitHubServicesSha
+    gitIpAddresses
+    hookIpAddresses
+    importerIpAddresses
+    isPasswordAuthenticationVerifiable
+    pagesIpAddresses
+  }
+}

lib/router.dart

@@ -36,6 +36,7 @@ import 'package:git_touch/screens/gh_gists_files.dart';
 import 'package:git_touch/screens/gh_issue.dart';
 import 'package:git_touch/screens/gh_issue_form.dart';
 import 'package:git_touch/screens/gh_issues.dart';
+import 'package:git_touch/screens/gh_meta.dart';
 import 'package:git_touch/screens/gh_object.dart';
 import 'package:git_touch/screens/gh_pulls.dart';
 import 'package:git_touch/screens/gh_releases.dart';
@@ -98,6 +99,12 @@ final router = GoRouter(
         GoRoute(
           path: 'settings',
           builder: (context, state) => SettingsScreen(),
+          routes: [
+            GoRoute(
+              path: 'github-meta',
+              builder: (context, state) => const GhMetaScreen(),
+            ),
+          ],
         ),
 
         // github

lib/screens/gh_meta.dart

@@ -0,0 +1,34 @@
+import 'package:flutter/widgets.dart';
+import 'package:git_touch/graphql/__generated__/github.data.gql.dart';
+import 'package:git_touch/graphql/__generated__/github.req.gql.dart';
+import 'package:git_touch/models/auth.dart';
+import 'package:git_touch/scaffolds/refresh_stateful.dart';
+import 'package:git_touch/widgets/table_view.dart';
+import 'package:provider/provider.dart';
+
+class GhMetaScreen extends StatelessWidget {
+  const GhMetaScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return RefreshStatefulScaffold<GMetaData_meta>(
+      title: const Text('Meta'),
+      fetch: () async {
+        final req = GMetaReq();
+        final res =
+            await context.read<AuthModel>().gqlClient.request(req).first;
+        return res.data!.meta;
+      },
+      bodyBuilder: (meta, _) {
+        return TableView(
+          items: [
+            TableViewItem(
+              child: const Text('Service SHA'),
+              extra: Text(meta.gitHubServicesSha),
+            ),
+          ],
+        );
+      },
+    );
+  }
+}

lib/screens/settings.dart

@@ -32,6 +32,10 @@ class SettingsScreen extends StatelessWidget {
                 child: Text(AppLocalizations.of(context)!.githubStatus),
                 url: 'https://www.githubstatus.com/',
               ),
+              const TableViewItem(
+                child: Text('Meta'),
+                url: '/settings/github-meta',
+              ),
               TableViewItem(
                 child: Text(AppLocalizations.of(context)!.reviewPermissions),
                 url: