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-server/src/engine/api/common/interfaces/workspace-auth-context.interface.ts

@@ -6,6 +6,7 @@ interface AuthContextWithDefinedWorkspaceProperties {
   workspace: NonNullable<AuthContext['workspace']>;
   workspaceMetadataVersion?: string;
   workspaceMemberId: AuthContext['workspaceMemberId'];
+  workspaceMember: AuthContext['workspaceMember'];
   userWorkspaceId: AuthContext['userWorkspaceId'];
   apiKey: AuthContext['apiKey'];
 }