Handle restricted objects #1 refactor permissions map + return object permissions from gql (#12313)

## Context
- Introduced objectPermissions in currentUserWorkspace which uses role
permissions from cache so we can fetch granular permissions from the API
- Refactored cached role permissions to map permissions with object
metadata id instead of object metadata name singular to be more flexible

New Cache
<img width="574" alt="Screenshot 2025-05-27 at 11 59 06"
src="https://github.com/user-attachments/assets/1a090134-1b8a-4681-a630-29f1472178bd"
/>

GQL
<img width="977" alt="Screenshot 2025-05-27 at 11 58 53"
src="https://github.com/user-attachments/assets/3b9a82b0-6019-4a25-a6e2-a9e0fb4bb8a0"
/>


Next steps: Use the updated API in the FE to fetch granular permissions
and update useHasObjectReadOnlyPermission hook

packages/twenty-server/src/engine/metadata-modules/object-permission/dtos/object-permission.dto.ts

@@ -2,12 +2,6 @@ import { Field, ObjectType } from '@nestjs/graphql';
 
 @ObjectType('ObjectPermission')
 export class ObjectPermissionDTO {
-  @Field({ nullable: false })
-  id: string;
-
-  @Field({ nullable: false })
-  roleId: string;
-
   @Field({ nullable: false })
   objectMetadataId: string;