Extract field metadata build out of object metadata build (#14763)

# Introduction

Extracting the legacy fields build and dispatch out of the object one to
follow the generic flat entity build, also update caches entries for
object

## Main tasks
- flat field map cache
- flat field builder
- refactored the dispatch matrix to return flat entity maps instead of
flat entity arrays
- orchestrator aggregator
- removing legacy code
- making universal identifier aka standardId of standard field for
custom object deterministically dynamic
- perfs debug logs for v2

## TODO
- [x] Refactor the generic entity builder to be dependency flat maps in
order to main foreign keys list in flat parent
- [x] Refactor the flat object metadata to contain the array of related
fields and avoid costy find object fields
- [ ] Improve the create field handler to handle multiple field at once
- [ ] Refactor the dispatch to embbed the comparison
- [ ] Improve perf by extracting from elements out of existing
- [ ] Fix the labelIdentifierId validators on object before field
creation ( integ tests are in failing mode )

## Debug logs snippet

```ts
[EntityBuilder fieldMetadata] matrix computation: 0.027ms
[EntityBuilder fieldMetadata] creation validation: 0.001ms
[EntityBuilder fieldMetadata] deletion validation: 0.293ms
[EntityBuilder fieldMetadata] update validation: 0.006ms
[EntityBuilder fieldMetadata] entity processing: 0.363ms
[EntityBuilder fieldMetadata] validateAndBuild: 0.455ms
[EntityBuilder index] matrix computation: 0.005ms
[EntityBuilder index] creation validation: 0.001ms
[EntityBuilder index] deletion validation: 0.146ms
[EntityBuilder index] update validation: 0.004ms
[EntityBuilder index] entity processing: 0.199ms
[EntityBuilder index] validateAndBuild: 0.228ms
[Runner] Initial cache retrieval: 0.549ms
[BaseWorkspaceMigrationRunnerActionHandlerService] delete_index executeForWorkspaceSchema: 11.665ms
[BaseWorkspaceMigrationRunnerActionHandlerService] delete_index executeForMetadata: 12.864ms
[BaseWorkspaceMigrationRunnerActionHandlerService] delete_field executeForWorkspaceSchema: 1.476ms
[BaseWorkspaceMigrationRunnerActionHandlerService] delete_field executeForMetadata: 6.816ms
[BaseWorkspaceMigrationRunnerActionHandlerService] delete_field executeForWorkspaceSchema: 0.062ms
[BaseWorkspaceMigrationRunnerActionHandlerService] delete_field executeForMetadata: 0.889ms
[Runner] Transaction execution: 23.434ms
[Runner] Cache invalidation: 316.662ms
[Runner] Total execution: 340.767ms
```
As you can see cache invalidation is way to long, we could replace the
cache by the optimistic in the end

packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/workspace-sync-metadata.module.ts

@@ -1,6 +1,7 @@
 import { Module } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
 
+import { WorkspaceManyOrAllFlatEntityMapsCacheModule } from 'src/engine/core-modules/common/services/workspace-many-or-all-flat-entity-maps-cache.module';
 import { FeatureFlag } from 'src/engine/core-modules/feature-flag/feature-flag.entity';
 import { FeatureFlagModule } from 'src/engine/core-modules/feature-flag/feature-flag.module';
 import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';
@@ -40,6 +41,7 @@ import { WorkspaceSyncMetadataService } from 'src/engine/workspace-manager/works
     TypeOrmModule.forFeature([Workspace, FeatureFlag]),
     WorkspaceMetadataVersionModule,
     AgentRoleModule,
+    WorkspaceManyOrAllFlatEntityMapsCacheModule,
   ],
   providers: [
     ...workspaceSyncMetadataFactories,

packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/workspace-sync-metadata.service.ts

@@ -5,6 +5,7 @@ import { DataSource, QueryFailedError } from 'typeorm';
 
 import { type WorkspaceSyncContext } from 'src/engine/workspace-manager/workspace-sync-metadata/interfaces/workspace-sync-context.interface';
 
+import { WorkspaceManyOrAllFlatEntityMapsCacheService } from 'src/engine/core-modules/common/services/workspace-many-or-all-flat-entity-maps-cache.service';
 import { WorkspaceMetadataVersionService } from 'src/engine/metadata-modules/workspace-metadata-version/services/workspace-metadata-version.service';
 import {
   WorkspaceMigrationEntity,
@@ -40,6 +41,7 @@ export class WorkspaceSyncMetadataService {
     private readonly workspaceMetadataVersionService: WorkspaceMetadataVersionService,
     private readonly workspaceSyncRoleService: WorkspaceSyncRoleService,
     private readonly workspaceSyncAgentService: WorkspaceSyncAgentService,
+    private readonly flatEntityMapsCacheService: WorkspaceManyOrAllFlatEntityMapsCacheService,
   ) {}
 
   /**
@@ -260,6 +262,10 @@ export class WorkspaceSyncMetadataService {
       await this.workspaceMetadataVersionService.incrementMetadataVersion(
         context.workspaceId,
       );
+      await this.flatEntityMapsCacheService.invalidateFlatEntityMaps({
+        workspaceId: context.workspaceId,
+        flatEntities: ['flatObjectMetadataMaps', 'flatFieldMetadataMaps'],
+      });
     }
 
     return {