claude refactorings, flutter best practices, platform dependent changes, general cleanup

lib/api/marianumcloud/autocomplete/autocomplete_api.dart

@@ -4,7 +4,7 @@ import 'dart:io';
 import 'package:http/http.dart' as http;
 
 import '../nextcloud_ocs.dart';
-import 'autocompleteResponse.dart';
+import 'autocomplete_response.dart';
 
 class AutocompleteApi {
   Future<AutocompleteResponse> find(String query) async {
@@ -22,6 +22,7 @@ class AutocompleteApi {
     if (response.statusCode != HttpStatus.ok) {
       throw Exception('Api call failed with ${response.statusCode}: ${response.body}');
     }
-    return AutocompleteResponse.fromJson(jsonDecode(response.body)['ocs']);
+    final decoded = jsonDecode(response.body) as Map<String, dynamic>;
+    return AutocompleteResponse.fromJson(decoded['ocs'] as Map<String, dynamic>);
   }
 }

lib/api/marianumcloud/autocomplete/autocomplete_response.dart

@@ -1,6 +1,6 @@
 import 'package:json_annotation/json_annotation.dart';
 
-part 'autocompleteResponse.g.dart';
+part 'autocomplete_response.g.dart';
 
 @JsonSerializable(explicitToJson: true)
 class AutocompleteResponse {

lib/api/marianumcloud/autocomplete/autocomplete_response.g.dart

@@ -1,6 +1,6 @@
 // GENERATED CODE - DO NOT MODIFY BY HAND
 
-part of 'autocompleteResponse.dart';
+part of 'autocomplete_response.dart';
 
 // **************************************************************************
 // JsonSerializableGenerator