admin panel fast follows (#10723)

fast follows:
- https://discord.com/channels/1130383047699738754/1346433965451382845
- https://discord.com/channels/1130383047699738754/1346434512757981264
- https://discord.com/channels/1130383047699738754/1346453484911853610

---------

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

packages/twenty-server/src/engine/guards/admin-panel-guard.ts

@@ -0,0 +1,15 @@
+import { CanActivate, ExecutionContext } from '@nestjs/common';
+import { GqlExecutionContext } from '@nestjs/graphql';
+
+import { Observable } from 'rxjs';
+
+export class AdminPanelGuard implements CanActivate {
+  canActivate(
+    context: ExecutionContext,
+  ): boolean | Promise<boolean> | Observable<boolean> {
+    const ctx = GqlExecutionContext.create(context);
+    const request = ctx.getContext().req;
+
+    return request.user.canAccessFullAdminPanel === true;
+  }
+}