feat(server,web): migrate oauth settings from env to system config (#1061)

mobile/openapi/test/system_config_o_auth_dto_test.dart

@@ -0,0 +1,57 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+import 'package:openapi/api.dart';
+import 'package:test/test.dart';
+
+// tests for SystemConfigOAuthDto
+void main() {
+  // final instance = SystemConfigOAuthDto();
+
+  group('test SystemConfigOAuthDto', () {
+    // bool enabled
+    test('to test the property `enabled`', () async {
+      // TODO
+    });
+
+    // String issuerUrl
+    test('to test the property `issuerUrl`', () async {
+      // TODO
+    });
+
+    // String clientId
+    test('to test the property `clientId`', () async {
+      // TODO
+    });
+
+    // String clientSecret
+    test('to test the property `clientSecret`', () async {
+      // TODO
+    });
+
+    // String scope
+    test('to test the property `scope`', () async {
+      // TODO
+    });
+
+    // String buttonText
+    test('to test the property `buttonText`', () async {
+      // TODO
+    });
+
+    // bool autoRegister
+    test('to test the property `autoRegister`', () async {
+      // TODO
+    });
+
+
+  });
+
+}