[OBJECT_CACHE_FLUSH_REQUIRED_WHEN_RELEASED] Remove FlatObjectMetadata custom fieldMetadataIds fk aggregator property (#17438)

# Introduction
Currently refactoring `flatEntity` typing, encountering some tsc errors
due to this fk aggregator custom override
It shall now follow generic pattern leading to be named `fieldIds`

Needs to flush object cache when released

packages/twenty-server/src/engine/workspace-manager/dev-seeder/metadata/services/dev-seeder-metadata.service.ts

@@ -50,7 +50,7 @@ type JunctionConfigSeed = {
 // Helper type for flat entity maps
 type FlatMaps = {
   fieldMaps: { byId: Record<string, { name: string; morphId?: string }> };
-  objectMaps: { byId: Record<string, { fieldMetadataIds: string[] }> };
+  objectMaps: { byId: Record<string, { fieldIds: string[] }> };
   objectIdByName: Record<string, string>;
 };
 
@@ -482,7 +482,7 @@ export class DevSeederMetadataService {
       throw new Error(`Object metadata not found: ${objectName}`);
     }
 
-    for (const fieldId of objectMetadata.fieldMetadataIds) {
+    for (const fieldId of objectMetadata.fieldIds) {
       if (flatMaps.fieldMaps.byId[fieldId]?.name === fieldName) {
         return fieldId;
       }

packages/twenty-server/src/engine/workspace-manager/twenty-standard-application/utils/object-metadata/create-standard-object-flat-metadata.util.ts

@@ -84,7 +84,7 @@ export const createStandardObjectFlatMetadata = <
       ].id
     : null,
   targetTableName: 'DEPRECATED',
-  fieldMetadataIds: [],
+  fieldIds: [],
   indexMetadataIds: [],
   viewIds: [],
   createdAt: now,

packages/twenty-server/src/engine/workspace-manager/workspace-migration/workspace-migration-runner/action-handlers/object/services/delete-object-action-handler.service.ts

@@ -77,7 +77,7 @@ export class DeleteObjectActionHandlerService extends WorkspaceMigrationRunnerAc
     const objectFlatFieldMetadatas =
       findManyFlatEntityByIdInFlatEntityMapsOrThrow({
         flatEntityMaps: flatFieldMetadataMaps,
-        flatEntityIds: flatObjectMetadata.fieldMetadataIds,
+        flatEntityIds: flatObjectMetadata.fieldIds,
       });
     const enumOrCompositeFlatFieldMetadatas = objectFlatFieldMetadatas.filter(
       (field) =>

packages/twenty-server/src/engine/workspace-manager/workspace-migration/workspace-migration-runner/action-handlers/object/services/update-object-action-handler.service.ts

@@ -96,7 +96,7 @@ export class UpdateObjectActionHandlerService extends WorkspaceMigrationRunnerAc
         const objectFlatFieldMetadatas =
           findManyFlatEntityByIdInFlatEntityMapsOrThrow({
             flatEntityMaps: flatFieldMetadataMaps,
-            flatEntityIds: updatedObjectMetadata.fieldMetadataIds,
+            flatEntityIds: updatedObjectMetadata.fieldIds,
           });
         const enumOrCompositeFlatFieldMetadatas =
           objectFlatFieldMetadatas.filter(