Row level permissions - POC 1 (#16599)

## Context
This PR adds the core structure for RLS implementation:
- RLS data model
- RLS service layer
- RLS WorkspaceMigration and Syncable Entity + cache + Validations
- RLS resolver layer
- ORM layer with RLS Predicate to ORM WHERE clause conversion with
workspaceMember record transposition

Tests are missing though

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Establishes core row-level permissions infrastructure and enforcement
across the stack.
> 
> - Backend: new `rowLevelPermissionPredicate` and
`rowLevelPermissionPredicateGroup` entities, TypeORM migration, feature
flag `IS_ROW_LEVEL_PERMISSION_PREDICATES_ENABLED`, flat-entity
maps/cache wiring, services and GraphQL resolvers for CRUD, and
inclusion of `workspaceMember` in auth context
> - ORM: applies row-level permission predicates to SELECT, DELETE, and
SOFT DELETE query builders; propagates context through
GlobalWorkspaceOrmManager/EntityManager
> - GraphQL: generated schema/types/queries/mutations for
creating/updating/deleting/fetching predicates and groups
> - Frontend: settings page adds a gated "Record-level" section
(placeholder) and metadata error handler labels for new entities
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
fe955cc4588a92157afa6795fb574189a4be1e93. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>

packages/twenty-front/src/modules/metadata-error-handler/hooks/useMetadataErrorHandler.ts

@@ -29,6 +29,8 @@ export const useMetadataErrorHandler = () => {
     pageLayout: t`page layout`,
     pageLayoutTab: t`page layout tab`,
     pageLayoutWidget: t`page layout widget`,
+    rowLevelPermissionPredicate: t`row level permission predicate`,
+    rowLevelPermissionPredicateGroup: t`row level permission predicate group`,
   } as const satisfies Record<AllMetadataName, string>;
 
   const handleMetadataError = useCallback(