shouldIncludeRecordPageLayouts deprecation (#19774)

## Context
Deprecating shouldIncludeRecordPageLayouts in preparation for page
layout release.

See new workspace with standard page layout from standard app
<img width="570" height="682" alt="Screenshot 2026-04-16 at 18 35 23"
src="https://github.com/user-attachments/assets/bf7fa621-d40d-4c29-8d96-537c58b3eb40"
/>

packages/twenty-server/src/engine/core-modules/twenty-config/config-variables.ts

@@ -230,14 +230,16 @@ export class ConfigVariables {
   @ValidateIf((env) => env.AUTH_MICROSOFT_ENABLED)
   AUTH_MICROSOFT_APIS_CALLBACK_URL: string;
 
+  /**
+   * @deprecated Use is now GA - record page layouts are always seeded
+   */
   @ConfigVariablesMetadata({
     group: ConfigVariablesGroup.ADVANCED_SETTINGS,
-    description:
-      'Enable or disable the seeding of standard record page layouts',
+    description: 'Deprecated - record page layouts are now always seeded (GA)',
     type: ConfigVariableType.BOOLEAN,
   })
   @IsOptional()
-  SHOULD_SEED_STANDARD_RECORD_PAGE_LAYOUTS = false;
+  SHOULD_SEED_STANDARD_RECORD_PAGE_LAYOUTS = true;
 
   @ConfigVariablesMetadata({
     group: ConfigVariablesGroup.MICROSOFT_AUTH,