Files v2 - FILES field update/create in common API (#17400)

## FILES Field update interface

```
mutation {
  updateCompany(
    id: "company-uuid"
    data: {
      filesfield: [
          { fileId: "new-file-uuid", label: "new-document.pdf" }
        ]
    }
  ) {
    id
    filesfield {
      fileId
      label
      extension
    }
  }
}
```

packages/twenty-server/src/engine/twenty-orm/entity-manager/workspace-entity-manager.spec.ts

@@ -234,6 +234,12 @@ describe('WorkspaceEntityManager', () => {
         emitDatabaseBatchEvent: jest.fn(),
         emitCustomBatchEvent: jest.fn(),
       } as any,
+      coreDataSource: {
+        getRepository: jest.fn(() => ({
+          find: jest.fn(),
+          softDelete: jest.fn(),
+        })),
+      } as any,
     } as WorkspaceInternalContext;
 
     mockDataSource = {
@@ -250,6 +256,7 @@ describe('WorkspaceEntityManager', () => {
       },
       permissionsPerRoleId: {},
       eventEmitterService: mockInternalContext.eventEmitterService,
+      coreDataSource: mockInternalContext.coreDataSource,
     } as GlobalWorkspaceDataSource;
 
     mockPermissionOptions = {
@@ -305,6 +312,7 @@ describe('WorkspaceEntityManager', () => {
         findColumnWithPropertyPath: jest.fn(),
       }),
       eventEmitterService: mockInternalContext.eventEmitterService,
+      coreDataSource: mockInternalContext.coreDataSource,
       createQueryBuilder: jest.fn().mockReturnValue({
         delete: jest.fn().mockReturnThis(),
         from: jest.fn().mockReturnThis(),