Improve performance on metadata computation (#12785)

In this PR:

## Improve recompute metadata cache performance. We are aiming for
~100ms

Deleting relationMetadata table and FKs pointing on it
Fetching indexMetadata and indexFieldMetadata in a separate query as
typeorm is suboptimizing

## Remove caching lock

As recomputing the metadata cache is lighter, we try to stop preventing
multiple concurrent computations. This also simplifies interfaces

## Introduce self recovery mecanisms to recompute cache automatically if
corrupted

Aka getFreshObjectMetadataMaps

## custom object resolver performance improvement:  1sec to 200ms

Double check queries and indexes used while creating a custom object
Remove the queries to db to use the cached objectMetadataMap

## reduce objectMetadataMaps to 500kb
<img width="222" alt="image"
src="https://github.com/user-attachments/assets/2370dc80-49b6-4b63-8d5e-30c5ebdaa062"
/>

We used to stored 3 fieldMetadataMaps (byId, byName, byJoinColumnName).
While this is great for devXP, this is not great for performances.
Using the same mecanisme as for objectMetadataMap: we only keep byIdMap
and introduce two otherMaps to idByName, idByJoinColumnName to make the
bridge

## Add dataloader on IndexMetadata (aka indexMetadataList in the API)

## Improve field resolver performances too

## Deprecate ClientConfig

packages/twenty-server/src/engine/core-modules/auth/token/services/access-token.service.ts

@@ -21,13 +21,13 @@ import {
 import { JwtWrapperService } from 'src/engine/core-modules/jwt/services/jwt-wrapper.service';
 import { TwentyConfigService } from 'src/engine/core-modules/twenty-config/twenty-config.service';
 import { UserWorkspace } from 'src/engine/core-modules/user-workspace/user-workspace.entity';
+import { userWorkspaceValidator } from 'src/engine/core-modules/user-workspace/user-workspace.validate';
 import { User } from 'src/engine/core-modules/user/user.entity';
 import { userValidator } from 'src/engine/core-modules/user/user.validate';
 import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';
 import { workspaceValidator } from 'src/engine/core-modules/workspace/workspace.validate';
 import { TwentyORMGlobalManager } from 'src/engine/twenty-orm/twenty-orm-global.manager';
 import { WorkspaceMemberWorkspaceEntity } from 'src/modules/workspace-member/standard-objects/workspace-member.workspace-entity';
-import { userWorkspaceValidator } from 'src/engine/core-modules/user-workspace/user-workspace.validate';
 
 @Injectable()
 export class AccessTokenService {
@@ -78,9 +78,6 @@ export class AccessTokenService {
         await this.twentyORMGlobalManager.getRepositoryForWorkspace<WorkspaceMemberWorkspaceEntity>(
           workspaceId,
           'workspaceMember',
-          {
-            shouldFailIfMetadataNotFound: false,
-          },
         );
 
       const workspaceMember = await workspaceMemberRepository.findOne({