[REQUIRES_CACHE_FLUSH][GQL_VIEW_GROUP_API_BREAKING_CHANGE] ViewGroup in v2 (#15052)

# Introduction
Adding view-group to core engine v2
Following https://github.com/twentyhq/twenty/pull/15010 ( same pattern )

## What's done
- Created flat-view-group
- flat view group runner
- flat view group builder
- create view group service v2 and input transpilers
- refactor the existing view group resolver to fix standard (
BREAKING_CHANGE on graphql api update especially ) REST stays the same
- refactored the front to consume the mutations autogenerated

close https://github.com/twentyhq/core-team-issues/issues/1665

packages/twenty-server/src/engine/metadata-modules/flat-field-metadata/utils/throw-on-field-input-transpilations-error.util.ts

@@ -2,6 +2,7 @@ import {
   type FieldInputTranspilationResult,
   type SuccessfulFieldInputTranspilation,
 } from 'src/engine/metadata-modules/flat-field-metadata/types/field-input-transpilation-result.type';
+import { EMPTY_ORCHESTRATOR_FAILURE_REPORT } from 'src/engine/workspace-manager/workspace-migration-v2/constant/empty-orchestrator-failure-report.constant';
 import { WorkspaceMigrationBuilderExceptionV2 } from 'src/engine/workspace-manager/workspace-migration-v2/exceptions/workspace-migration-builder-exception-v2';
 
 // This could be improved by still running the build and validate with available valid inputs
@@ -24,11 +25,7 @@ export const throwOnFieldInputTranspilationsError: ThrowOnFieldInputTranspilatio
       throw new WorkspaceMigrationBuilderExceptionV2(
         {
           report: {
-            viewFilter: [],
-            fieldMetadata: [],
-            index: [],
-            view: [],
-            viewField: [],
+            ...EMPTY_ORCHESTRATOR_FAILURE_REPORT,
             objectMetadata: [
               {
                 errors: failedInputTranspilationErrors,
@@ -36,10 +33,6 @@ export const throwOnFieldInputTranspilationsError: ThrowOnFieldInputTranspilatio
                 flatEntityMinimalInformation: {},
               },
             ],
-            serverlessFunction: [],
-            databaseEventTrigger: [],
-            cronTrigger: [],
-            routeTrigger: [],
           },
           status: 'fail',
         },