Created create community bloc, services, and param.

lib/pages/space_management_v2/modules/create_community/data/services/remote_create_community_service.dart

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+import 'package:dio/dio.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain/models/community_model.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/create_community/domain/param/create_community_param.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/create_community/domain/services/create_community_service.dart';
+import 'package:syncrow_web/services/api/api_exception.dart';
+import 'package:syncrow_web/services/api/http_service.dart';
+
+class RemoteCreateCommunityService implements CreateCommunityService {
+  const RemoteCreateCommunityService(this._httpService);
+
+  final HTTPService _httpService;
+
+  static const _defaultErrorMessage = 'Failed to create community';
+
+  @override
+  Future<CommunityModel> createCommunity(CreateCommunityParam param) async {
+    try {
+      final response = await _httpService.post(
+        path: 'endpoint',
+        expectedResponseModel: (data) => CommunityModel.fromJson(
+          data as Map<String, dynamic>,
+        ),
+      );
+      return response;
+    } on DioException catch (e) {
+      final message = e.response?.data as Map<String, dynamic>?;
+      final error = message?['error'] as Map<String, dynamic>?;
+      final errorMessage = error?['error'] as String? ?? '';
+      final formattedErrorMessage = [
+        _defaultErrorMessage,
+        errorMessage,
+      ].join(': ');
+      throw APIException(formattedErrorMessage);
+    } catch (e) {
+      final formattedErrorMessage = [_defaultErrorMessage, '$e'].join(': ');
+      throw APIException(formattedErrorMessage);
+    }
+  }
+}

lib/pages/space_management_v2/modules/create_community/domain/param/create_community_param.dart

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+import 'package:equatable/equatable.dart';
+
+class CreateCommunityParam extends Equatable {
+  const CreateCommunityParam({required this.name});
+  
+  final String name;
+
+  @override
+  List<Object> get props => [name];
+}

lib/pages/space_management_v2/modules/create_community/domain/services/create_community_service.dart

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+import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain/models/community_model.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/create_community/domain/param/create_community_param.dart';
+
+abstract class CreateCommunityService {
+  Future<CommunityModel> createCommunity(CreateCommunityParam param);
+}

lib/pages/space_management_v2/modules/create_community/presentation/bloc/create_community_bloc.dart

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+import 'package:bloc/bloc.dart';
+import 'package:equatable/equatable.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain/models/community_model.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/create_community/domain/param/create_community_param.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/create_community/domain/services/create_community_service.dart';
+import 'package:syncrow_web/services/api/api_exception.dart';
+
+part 'create_community_event.dart';
+part 'create_community_state.dart';
+
+class CreateCommunityBloc extends Bloc<CreateCommunityEvent, CreateCommunityState> {
+  final CreateCommunityService _createCommunityService;
+
+  CreateCommunityBloc(
+    this._createCommunityService,
+  ) : super(CreateCommunityInitial()) {
+    on<CreateCommunity>(_onCreateCommunity);
+  }
+
+  Future<void> _onCreateCommunity(
+    CreateCommunity event,
+    Emitter<CreateCommunityState> emit,
+  ) async {
+    emit(CreateCommunityLoading());
+    try {
+      final createdCommunity = await _createCommunityService.createCommunity(
+        event.param,
+      );
+      emit(CreateCommunitySuccess(createdCommunity));
+    } on APIException catch (e) {
+      emit(CreateCommunityFailure(e.message));
+    } catch (e) {
+      emit(CreateCommunityFailure(e.toString()));
+    }
+  }
+}

lib/pages/space_management_v2/modules/create_community/presentation/bloc/create_community_event.dart

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+part of 'create_community_bloc.dart';
+
+sealed class CreateCommunityEvent extends Equatable {
+  const CreateCommunityEvent();
+
+  @override
+  List<Object> get props => [];
+}
+
+final class CreateCommunity extends CreateCommunityEvent {
+  const CreateCommunity(this.param);
+
+  final CreateCommunityParam param;
+
+  @override
+  List<Object> get props => [param];
+}

lib/pages/space_management_v2/modules/create_community/presentation/bloc/create_community_state.dart

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+part of 'create_community_bloc.dart';
+
+sealed class CreateCommunityState extends Equatable {
+  const CreateCommunityState();
+
+  @override
+  List<Object> get props => [];
+}
+
+final class CreateCommunityInitial extends CreateCommunityState {}
+
+final class CreateCommunityLoading extends CreateCommunityState {}
+
+final class CreateCommunitySuccess extends CreateCommunityState {
+  const CreateCommunitySuccess(this.community);
+
+  final CommunityModel community;
+
+  @override
+  List<Object> get props => [community];
+}
+
+final class CreateCommunityFailure extends CreateCommunityState {
+  final String message;
+
+  const CreateCommunityFailure(this.message);
+
+  @override
+  List<Object> get props => [message];
+}