feat: prompts from workspace

lib/core/services/prompts_service.dart

@@ -0,0 +1,32 @@
+import 'package:dio/dio.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import 'package:conduit/core/error/api_error_handler.dart';
+import 'package:conduit/core/models/prompt.dart';
+import 'package:conduit/core/providers/app_providers.dart';
+import 'package:conduit/core/services/api_service.dart';
+
+class PromptsService {
+  const PromptsService(this._apiService);
+
+  final ApiService _apiService;
+
+  Future<List<Prompt>> getPrompts() async {
+    try {
+      final List<Map<String, dynamic>> response = await _apiService
+          .getPrompts();
+      return response
+          .map((item) => Prompt.fromJson(item))
+          .where((prompt) => prompt.command.isNotEmpty)
+          .toList();
+    } on DioException catch (error) {
+      throw ApiErrorHandler().transformError(error);
+    }
+  }
+}
+
+final promptsServiceProvider = Provider<PromptsService?>((ref) {
+  final apiService = ref.watch(apiServiceProvider);
+  if (apiService == null) return null;
+  return PromptsService(apiService);
+});